Journal of Preventive Medicine and Public Health

Special Article

Current Status of the National Cancer Screening Program in Korea: History, Achievements, and Future Directions: Kyeongmin Lee, Mina Suh, Kui Son Choi; J Prev Med Public Health. 2025;58(4):337-347. Published online June 21, 2025; DOI: https://doi.org/10.3961/jpmph.25.268

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Abstract Summary PDF Supplementary Material

Cancer is the leading cause of morbidity and mortality worldwide. To reduce this burden, the Korean government established the National Cancer Screening Program (NCSP) in 1999, initially offering stomach, breast, and cervical cancer screening to Medical Aid Program (MAP) beneficiaries. By 2019, the NCSP had broadened both its eligible population and the range of cancers screened—stomach, liver, cervical, breast, colorectal, and lung—for both MAP recipients and health insurance beneficiaries. Since its inception, participation and adherence to recommended screening have risen steadily, driven by nationwide policy initiatives and expanded access. Over the past 2 decades, the NCSP has played a key role in reducing the incidence of stomach, liver, colorectal, and cervical cancers while increasing detection at precancerous stages, especially for cervical and colorectal cancers. Five-year relative survival rates for major cancers—most notably stomach, colorectal, and breast—have also improved substantially. Accumulated evidence, including cancer detection rates, stage distribution at diagnosis, and mortality reduction, underscores the program’s effectiveness in facilitating early detection and reducing cancer-specific deaths. Notably, Korea’s mortality-to-incidence ratio for major cancers remains well below the Organization for Economic Cooperation and Development average, illustrating the impact of the nation’s comprehensive cancer control strategies. Continued research, surveillance, and refinement of evidence-based screening guidelines will be critical to further enhancing the efficiency and effectiveness of the NCSP.

Summary

Korean summary
한국의 국가암검진 사업은 도입 이후 지난 20여 년간 암 발생률과 사망률 감소에 크게 기여해왔다. 본 연구에서는 한국의 국가암검진 프로그램의 도입 이후 발전과정을 살펴보고, 암 질병부담 감소에 기여한 주요성과들을 고찰하였다. 또한, 국가암검진의 효과성을 높이기 위해 근거에 기반한 암검진 권고안 개정의 필요성을 논의하고, 향후 국가암검진 사업의 지속적인 성과 향상을 위한 발전방안을 제시하였다.

Key Message
Since its inception, Korea’s National Cancer Screening Program (NCSP) has played a critical role in reducing cancer incidence and mortality over the past two decades. This study presents a comprehensive review of the NCSP’s development and its key contributions to alleviating the national cancer burden. In addition, it emphasizes the necessity of updating cancer screening guidelines in accordance with the latest scientific evidence and outlines strategic directions to further strengthen the program’s effectiveness and long-term outcomes.

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Inequalities in breast cancer incidence and mortality in women with and without disabilities in South Korea: A population-based cohort study
Hee-Yeon Kang, Eunjung Park, Thi Tra Bui, Byungmi Kim, Jin-Kyoung Oh
Preventive Medicine Reports.2025; 59: 103242. CrossRef
Enhancing cancer risk awareness and screening management through artificial intelligence: a narrative review
Jiaxuan Wu, Xiaolong Tang, Qian Zheng, Xinhang Gu, Li Ma, Jinghong Xian, Hui Mao, Jiadi Gan, Guiyi Ji
Frontiers in Oncology.2025;[Epub] CrossRef
Practice of Cytopathology in Korea: A 40‐Year Evolution Through Standardization, Digital Transformation, and Global Partnership
Yosep Chong, Ran Hong, Hyeong Ju Kwon, Haeryoung Kim, Lucia Kim, Soon Jae Kim, Yoon Jung Choi
Diagnostic Cytopathology.2025;[Epub] CrossRef
Temporal trends and future projections of six major cancers among women of childbearing age in northeast Asia: analysis of data from the global burden of disease study 2021
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Original Articles

Factors Associated With Premarital Screening Intention Among Young Adults With Higher Education in Indonesia: A Cross Sectional Study: Yuli Amran, Tsaniya Nurul Fasya, Hilda Salamah; J Prev Med Public Health. 2025;58(3):307-316. Published online April 21, 2025; DOI: https://doi.org/10.3961/jpmph.24.589

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Abstract Summary PDF Supplementary Material: Objectives
Premarital screening can reduce the risk of genetic disorders and sexually transmitted diseases by providing early detection before conception. College students represent a group of young adults with higher education who are approaching marriageable age. However, many students still lack a strong intention to undergo premarital screening in the future. Therefore, this study examines the factors influencing screening intentions among students at one of Indonesia’s leading universities, the State Islamic University (UIN) Jakarta.
Methods
This study used a cross-sectional design, with a total sample of 563 college students obtained through a multistage random sampling technique. Descriptive statistics were used to summarize the data, and ordinal logistic regression was applied for hypothesis testing.
Results
Among the 563 students, 97.0% indicated an intention to undergo premarital screening. The intention variable was classified into three levels: no/low (13.0%), moderate (43.5%), and high (43.5%). Ordinal logistic regression revealed that lower knowledge about premarital screening was significantly associated with a reduced intention to undergo screening (odds ratio [OR], 2.84; 95% confidence interval [CI], 1.58 to 5.10). In addition, negative attitudes toward premarital screening (OR, 2.85; 95% CI, 1.41 to 5.75), negative perceived behavioral control (OR, 1.63; 95% CI, 1.12 to 2.37), and being enrolled in a non-health-related field of study (OR, 1.96; 95% CI, 1.04 to 3.68) were significantly linked to lower screening intentions.
Conclusions
Comprehensive premarital health education is essential for young adults, even those with a high level of formal education. Such education not only improves knowledge but also promotes more positive perceptions and attitudes toward premarital screening.; Summary

Key Message
This study explored the key factors influencing college students’ intentions to undergo premarital screening. Although 97% expressed willingness, only 43.5% reported a high level of intention, which was significantly associated with limited knowledge, negative attitudes, reduced perceived behavioral control, and enrollment in non-health-related fields. These findings highlight the need for comprehensive premarital health education that enhances knowledge and fosters more favorable attitudes and perceptions, even among highly educated populations.

The Impact of Student-led Community Health Screenings on Clients’ Health Knowledge and Outcomes: A Qualitative Study in New Zealand: JiaRong Yap, Wendy Wenming Zhai, Cindy Seunghee Pak, Sharon Brownie; J Prev Med Public Health. 2025;58(2):167-176. Published online November 28, 2024; DOI: https://doi.org/10.3961/jpmph.24.366

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Abstract Summary PDF: Objectives
This study investigated the impact of community health screenings (CHS) on the Asian community, focussing on the role of a student-led health and wellness centre in promoting and improving health outcomes. The CHS is a collaboration between Te Kotahi Oranga | Health and Wellness Centre and The Asian Network Incorporated, offering free health screenings to Asian migrants in the Waikato region, New Zealand.
Methods
Employing a qualitative approach, we interviewed clients who participated in the CHS to determine their perceptions regarding the effectiveness of the programme, its influence on their health knowledge and actions, and their overall satisfaction with the service. The Consolidated Criteria for Reporting Qualitative Research (COREQ) checklist was used to report the study.
Results
Data analysis utilising reflexive thematic analysis yielded 5 themes: satisfaction and appreciation for the free health screening; strengthened commitment to better personal health; barriers and challenges in accessing public healthcare services; improved knowledge and awareness of health risks; and provision of more health screening tests and health seminars. The findings highlight the significance of culturally tailored health initiatives in addressing healthcare disparities, emphasising the need for innovative strategies to ensure continuity of care and support for underserved populations.
Conclusions
This research contributes to the understanding of how student-led health interventions can enhance public health efforts and improve health outcomes in Asian and migrant communities.; Summary

Key Message
This study explores the impact of a student-led community health screening (CHS) programme on Asian migrants in New Zealand, focusing on its effects on health knowledge and outcomes. Through qualitative interviews, five key themes emerged: participant satisfaction, commitment to personal health, barriers to healthcare access, increased awareness of health risks, and the need for expanded screening services. The findings underscore the value of culturally tailored health initiatives in reducing healthcare disparities and highlight the role of student-led interventions in enhancing preventative care and promoting health equity in underserved populations.

Air Passengers’ Risk of SARS-CoV-2 Infection With a 14-Day Quarantine and Accuracy Assessment of a Symptom-based Screening System at an Airport: Toonlaya Direkwutthikun, Chanapong Rojanaworarit, Isabella Andrade, Bhanasut Hunsajarupan, Nuttawoot Photisan, Pattarasuda Sookchom, Thawabhorn Jannok, Rome Buathong; J Prev Med Public Health. 2025;58(1):72-82. Published online November 3, 2024; DOI: https://doi.org/10.3961/jpmph.24.517

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Abstract Summary PDF Supplementary Material: Objectives
This study aimed to validate the risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, identify infection risk factors among air passengers subject to a 14-day mandatory quarantine, and evaluate the accuracy of mass symptom-based screening criteria at an airport.
Methods
This retrospective cohort study analyzed data from 116 004 air passengers who entered Thailand through Suvarnabhumi Airport in Bangkok from April 2020 to September 2020. The incidence of SARS-CoV-2 infection, risk characteristics, and accuracy indices of symptom-based screening were calculated.
Results
The overall incidence of SARS-CoV-2 was 0.5%, or 540 infections per 100 000 air passengers. Identified risk factors included sex, nationality, continent of departure, on-arrival screening results, and month of travel. Positive screening results indicated a higher risk and positive likelihood ratio for SARS-CoV-2 infection. However, the on-arrival screening criteria demonstrated low sensitivity and area under the receiver operating characteristic curve.
Conclusions
The current study confirms previous findings that the risk of SARS-CoV-2 infection during air travel is low. However, this might result from strict pre-departure screening and the SARS-CoV-2 test requirement for arriving passengers. The symptom-based screening criteria used upon arrival showed a low probability of identifying positive cases, suggesting that incorporating additional criteria could help detect asymptomatic infections. The integrated screening and quarantine model proved effective in preventing the spread of the virus into local communities.; Summary

Key Message
The risk of SARS-CoV-2 infection during air travel is low given a strict pre-departure screening and the SARS-CoV-2 test requirement. The symptom-based screening criteria used upon arrival showed a low probability of identifying positive cases. The integrated screening and quarantine model proved effective in preventing the spread of the virus into local communities.

Multilevel Analysis of the Relationship Between Prescribing Institutions and Medication Adherence Among Patients With Hypertension and Diabetes in Korea: Haryeom Ghang, Juhyang Lee; J Prev Med Public Health. 2023;56(6):504-514. Published online October 5, 2023; DOI: https://doi.org/10.3961/jpmph.23.252

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Abstract Summary PDF Supplementary Material

Objectives
This study investigated the relationship between prescribing institutions and medication adherence among patients newly diagnosed with hypertension and diabetes.
Methods
This study investigated patients with new prescriptions for hypertension and diabetes in Korea in 2019 with using data collected from general health screenings. A multilevel logistic regression model was applied to explore the relationship between patients’ first prescribing institution and their medication adherence, defined as a medication possession ratio (MPR) over 80%.
Results
The overall adherence rates were 53.7% and 56.0% among patients with hypertension and diabetes, respectively. The intraclass correlation coefficients were 13.2% for hypertension and 13.8% for diabetes (p<0.001), implying that the first prescribing institution had a significant role in medication adherence. With clinics as the reference group, all other types of hospitals showed an odds ratio (OR) less than 1.00, with the lowest for tertiary hospitals (OR, 0.30 for hypertension; 0.45 for diabetes), and the next lowest in health screening specialized clinics (OR, 0.51 for hypertension; 0.46 for diabetes). Among individual-level variables, female sex, older age, higher insurance premium level, and residing in cities were positively associated with adherence in both the hypertension and diabetes samples.
Conclusions
This study showed that the prescribing institution had a significant relationship with medication adherence. When the first prescribing institution was a clinic, newly diagnosed patients were more likely to adhere to their medication. These results highlight the important role played by primary care institutions in managing mild chronic diseases.

Summary

Korean summary
2019년 일반건강검진을 통해 발견된 고혈압과 당뇨병의 신규 환자를 대상으로 복약순응도를 분석하였다. 그 결과 검진 후 첫번째 처방기관이 의원인 경우에 비해 다른 종별 의료기관인 경우 복약순응 오즈비가 모두 감소하였는데 상급종합병원이 가장 낮았고(고혈압 0.30, 당뇨병 0.45), 그 다음은 검진전문의원인 것으로 나타났다(고혈압 0.51, 당뇨병 0.46).

Key Message
This study investigated the relationship between prescribing institutions and medication adherence among patients newly diagnosed with hypertension and diabetes using general health screening data in Korea in 2019. The results showed that with clinics as the reference group, all other types of hospitals showed an odds ratio (OR) less than 1.00, with the lowest for tertiary hospitals (OR, 0.30 for hypertension; 0.45 for diabetes), and the next lowest in health screening specialized clinics (OR, 0.51 for hypertension; 0.46 for diabetes).

Citations

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The Diabetogenic Effect of Statin Use May Interact With Polygenic Risk Scores for Type 2 Diabetes: Evidence From the UK Biobank
Jong Hyun Park, Kyu-Taek Lim, Jooyeon Lee, Yongjin Gil, Joohon Sung
Journal of Preventive Medicine and Public Health.2025; 58(1): 92. CrossRef
Evidence of Overlapping Roles Between Clinics and Hospitals in Primary Care
Boram Sim, Jihye Shin, Hyun Woo Kim, Jin Yong Lee, Min-Woo Jo
Journal of Korean Medical Science.2025;[Epub] CrossRef
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Lung Cancer Screening With Low-dose Chest Computed Tomography: Experience From Radon-contaminated Regions in Kazakhstan: Alexandra Panina, Dilyara Kaidarova, Zhamilya Zholdybay, Akmaral Ainakulova, Jandos Amankulov, Dias Toleshbayev, Zhanar Zhakenova, Arman Khozhayev; J Prev Med Public Health. 2022;55(3):273-279. Published online April 14, 2022; DOI: https://doi.org/10.3961/jpmph.21.600

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Abstract PDF

Objectives
The aim of this study was to present the baseline results of a pilot project conducted to evaluate the effectiveness of lung cancer screening using low-dose chest computed tomography (CT) in regions with excessive radon levels in the Republic of Kazakhstan.
Methods
In total, 3671 participants were screened by low-dose chest CT. Current, former, and never-smokers who resided in regions with elevated levels of radon in drinking water sources and indoor air, aged between 40 and 75 with no history of any cancer, and weighing less than 140 kg were included in the study. All lung nodules were categorized according to the American College of Radiology Lung Imaging Reporting and Data System (Lung-RADS 1.0).
Results
Overall, 614 (16.7%) participants had positive baseline CT findings (Lung-RADS categories 3 and 4). Seventy-four cancers were detected, yielding an overall cancer detection rate of 2.0%, with 10.8% (8/74) stage I and a predominance of stage III (59.4%; 44/74). Women never-smokers and men current smokers had the highest cancer detection rates, at 2.9% (12/412) and 6.1% (12/196), respectively. Compared to never-smokers, higher odds ratios (ORs) of lung cancer detection were found in smokers (OR,2.48; 95% confidence interval [CI], 1.52 to 4.05, p<0.001) and former smokers (OR, 2.32; 95% CI, 1.06 to 5.06, p=0.003). The most common histologic type of cancer was adenocarcinoma (58.1%).
Conclusions
Implementation of low-dose CT screening for lung cancer in regions with elevated radon levels is an effective method for both smokers and never-smokers.

Summary

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First Central Asian Forum on Lung Cancer
Jandos Amankulov, David F. Yankelevitz, Amangeldi Mukhamejan, Rowena Yip, Emanuela Taioli, Bruce Pyenson, James Mulshine, Claudia I. Henschke
JTO Clinical and Research Reports.2026; 7(1): 100898. CrossRef
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European Radiology.2023; 34(3): 1877. CrossRef

A Multi-level Analysis of Factors Affecting Participation in Health Screenings in Korea: A Focus on Household and Regional Factors: So Yoon Park, Young-jeon Shin; J Prev Med Public Health. 2022;55(2):153-163. Published online October 27, 2021; DOI: https://doi.org/10.3961/jpmph.21.268

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Abstract Summary PDF Supplementary Material

Objectives
This study divided the factors that affect participation in health screenings into individual, household, and regional levels and conducted a multi-level analysis to identify the factors related to participation in health screenings.
Methods
Participants from the 2017 Community Health Survey were classified into 2 groups (under 40 and 40 or older). A multi-level logistic regression analysis was conducted to identify the factors that affected participation in health screenings.
Results
The screening rate of the participants was 69.7%, and it was higher among participants aged 40 and older (80.3%) than it was among participants younger than 40 (49.8%). At the individual level, the factors that influenced participation in health screenings included age, economic activity, smoking status, physician-diagnosed hypertension, and a moderate or high physical activity level. At the household level, the odds ratio of participation in health screenings was high for participants who lived in single-person households, lived with a spouse, earned a high monthly household income, and were not beneficiaries of national basic livelihood security. At the regional level, the odds ratio at the 95% confidence interval level of participation in health screenings was high for participants who had trust in the local community and lived in an area with a proportionally high social welfare budget.
Conclusions
This study analyzed nationalwide data and confirmed that individual, household, and regional characteristics affected participation in health screenings. Therefore, policies that prioritize the improvement of regional level factors and especially household level factors are likely to be the most effective for improving the screening rate.

Summary

Korean summary
이 연구는 건강검진 수검 여부에 영향을 미치는 요인을 개인, 가구, 지역수준으로 나누어 다수준 분석을 통해 분석하였다. 건강검진 수검여부에 개인 특성뿐만 아니라 개인을 둘러싼 가구와 지역의 특성도 영향을 미친다는 것을 확인하였다. 영향요인들의 유의성을 바탕으로, 건강검진 수검률 향상을 위한 정책을 수립할 때 지역수준 요인뿐만 아니라 특별히 가구수준 요인을 개선할 수 있는 정책을 우선하는 것이 효과적일 것이다.

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Determinants of Adherence to Diabetes Screening in Iranian Adults With a Positive Family History of Diabetes: Narges Malih, Mohammad-Reza Sohrabi, Alireza Abadi, Shahnam Arshi; J Prev Med Public Health. 2021;54(3):190-198. Published online April 7, 2021; DOI: https://doi.org/10.3961/jpmph.20.496

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Abstract PDF Supplementary Material

Objectives
Insufficient evidence exists regarding factors that affect screening adherence among people with a family history of diabetes, who comprise roughly half of all patients with diabetes. Therefore, we aimed to identify the determinants of diabetes screening adherence in adults with a family history of diabetes who had not yet been diagnosed with diabetes.
Methods
This cross-sectional study was conducted at selected urban primary healthcare facilities in Tehran, Iran. The study population was clinically non-diabetic adults above 20 years of age with a family history of diabetes in at least 1 first-degree relative. All eligible people identified on randomly-selected days of the month were invited to join the study.
Results
Among 408 participants, 128 (31.4%) had received a fasting blood glucose check during the last year. Using binary logistic regression, the independent predictors of screening adherence were knowledge of adverse effects of diabetes such as sexual disorders (odds ratio [OR], 3.05) and renal failure (OR, 2.73), the impact of family members’ advice on receiving diabetes screening (OR, 2.03), recommendation from a healthcare provider to have a fasting blood glucose check (OR, 2.61), and intention to have a fasting blood glucose check within the next 6 months (OR, 2.85). Other variables that predicted screening adherence were age (OR, 1.05), job (being a housekeeper; OR, 3.39), and having a college degree (OR, 3.55).
Conclusions
Knowledge of the adverse effects of diabetes, physicians’ and healthcare providers’ advice about the benefits of early disease detection, and family members’ advice were independent predictors of screening adherence.

Summary

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Brief Report

A Cross-sectional Study of Cancer Knowledge and Beliefs Among Faith-based Chinese in the USA Versus Taiwan: Su-I Hou, Xian Cao; J Prev Med Public Health. 2019;52(1):60-65. Published online January 20, 2019; DOI: https://doi.org/10.3961/jpmph.17.051

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Abstract PDF: Objectives
This study examined cancer knowledge, beliefs, and practice among faith-based Chinese in the USA versus Taiwan to gain better understandings on how environment and culture might play a role for tailored cancer education programs.
Methods
A self-administered survey included a validated 10-item Cancer Screening Belief Scale (CSBS), an 8-item Cancer Screening Knowledge Test (CSKT), and a 14-item cancer Warning Signs Test (CWST) was administered. Participants were recruited from 9 Chinese churches (5 in the USA and 4 in Taiwan).
Results
A total of 372 Chinese participated, 50% lived in the USA and 50% in Taiwan. Mean age was 44.31 (standard deviation, 14.74), 60% males, and majority had college education (85%). Taiwan participants scored higher on both CSKT (6.13 vs. 5.52; p<0.001) and CWST (6.80 vs. 5.38; p<0.001). Although perceived screening benefits and barriers were similar, Taiwan participants endorsed higher on screening norms (11.67 vs. 10.82; p<0.001). Taiwan participants also indicated more doctor recommending cancer screenings (42.1% vs. 29.6%; p=0.015), USA participants were more likely to have had annual health exams (65.4% vs. 48.9%; p=0.002). Regression results showed that those resided in the USA were 2.38 times more likely to report annual health exams. Married status (odds ratio [OR], 2.85), college education (OR, 2.38), doctor’s recommendation (OR, 2.87), no family cancer history (OR, 2.47), and those with lower barriers were significant factors on annual health exams.
Conclusions
Taiwan participants scored higher on cancer knowledge and screening norms, while more USA participants reported annual health exams. Taiwan’s universal healthcare might play a role on the different healthcare seeking patterns.; Summary

Original Articles

Rates of Change to a Positive Result in Subsequent Screening Mammography in Korean Women: A Retrospective Observational Study: Jong-Myon Bae, Sang Yop Shin, Eun Hee Kim, Yoon-Nam Kim, Chung Mo Nam; J Prev Med Public Health. 2015;48(1):48-52. Published online December 26, 2014; DOI: https://doi.org/10.3961/jpmph.14.042

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Abstract PDF: Objectives
This retrospective cohort study aimed at calculating some parameters of changes in the findings of the subsequent screening mammography (SSM) in female Korean volunteers.
Methods
The study included screenees aged 30 to 79 years who underwent SSM voluntarily after testing negative in the baseline screenings performed between January 2007 and December 2011. A change to a positive result was defined as category 4 or 5 by using the American College of Radiology Breast Imaging Reporting and Data System. The proportion of results that had changed to positive (CP, %) was calculated by dividing the number of cases with results that were positive in the SSM by the total number of study participants. The rate of results that had changed to positive (CR, cases per 100 000 screenee-months) was calculated by dividing the number of cases with results that were positive in the SSM by the total number of months of the follow-up period.
Results
The overall CP and CR in all age groups (n=77 908) were 2.26% and 93.94 cases per 100 000 screenee-months, respectively. The median CP interval in the subjects who had positive SSM results was 30 to 36 months, while that in the age group of 30 to 39 years was shorter.
Conclusions
Different screening intervals should be considered among women aged between 30 and 59 years. In addition, a strategy for a screening program should be developed for the age group of 30 to 39 years, in particular.; Summary

Mean Sojourn Time of Preclinical Gastric Cancer in Korean Men: A Retrospective Observational Study: Jong-Myon Bae, Sang Yop Shin, Eun Hee Kim; J Prev Med Public Health. 2014;47(4):201-205. Published online July 31, 2014; DOI: https://doi.org/10.3961/jpmph.2014.47.4.201

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Abstract PDF

Objectives
This retrospective cohort study aimed to estimate the mean sojourn time (MST) of preclinical gastric cancer in Korean men.
Methods
The subjects consisted of voluntary male screenees aged 40 to 69 years who underwent subsequent screening gastroscopies after testing negative at a baseline screening performed between January 2007 and December 2011. A new case was defined if gastric cancer cells were present in the biopsy specimens obtained from gastroscopy. The follow-up period was calculated as the number of person-years between the date of baseline screening gastroscopy and positive findings at a subsequent screening. The MST was calculated using transition rates of gastric cancer to determine the best screening interval.
Results
Of the 171 979 voluntary male screenees, 61 688 (36%) underwent subsequent screening gastroscopies between January 2007 and December 2011. A total of 91 incident cases were found during 19 598 598 person-years of follow-up. The MST of gastric cancer was 2.37 years (95% confidence intervals, 1.92 to 2.96), and those aged 40 to 49 years had a shorter MST than those 50 to 69 years did.
Conclusions
These findings support the 2-year interval of screening recommended by the nationwide gastric cancer screening program in Korea. Further studies for the age-specific MST among women are needed.

Summary

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Review

Cancer Control Programs in East Asia: Evidence From the International Literature: Malcolm A. Moore; J Prev Med Public Health. 2014;47(4):183-200. Published online July 31, 2014; DOI: https://doi.org/10.3961/jpmph.2014.47.4.183

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Abstract PDF

Cancer is a major cause of mortality and morbidity throughout the world, including the countries of North-East and South-East Asia. Assessment of burden through cancer registration, determination of risk and protective factors, early detection and screening, clinical practice, interventions for example in vaccination, tobacco cessation efforts and palliative care all should be included in comprehensive cancer control programs. The degree to which this is possible naturally depends on the resources available at local, national and international levels. The present review concerns elements of cancer control programs established in China, Taiwan, Korea, and Japan in North-East Asia, Viet Nam, Thailand, Malaysia, and Indonesia as representative larger countries of South-East Asia for comparison, using the published literature as a guide. While major advances have been made, there are still areas which need more attention, especially in South-East Asia, and international cooperation is essential if standard guidelines are to be generated to allow effective cancer control efforts throughout the Far East.

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Special Article

Cost Effectiveness of Interventions to Promote Screening for Colorectal Cancer: A Randomized Trial: Swati Misra, David R. Lairson, Wenyaw Chan, Yu-Chia Chang, L. Kay Bartholomew, Anthony Greisinger, Amy McQueen, Sally W. Vernon; J Prev Med Public Health. 2011;44(3):101-110. Published online May 17, 2010; DOI: https://doi.org/10.3961/jpmph.2011.44.3.101

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Abstract PDF

Objectives

Screening for colorectal cancer is considered cost effective, but is underutilized in the U.S. Information on the efficiency of "tailored interventions" to promote colorectal cancer screening in primary care settings is limited. The paper reports the results of a cost effectiveness analysis that compared a survey-only control group to a Centers for Disease Control (CDC) web-based intervention (screen for life) and to a tailored interactive computer-based intervention.

Methods

A randomized controlled trial of people 50 and over, was conducted to test the interventions. The sample was 1224 partcipants 50-70 years of age, recruited from Kelsey-Seybold Clinic, a large multi-specialty clinic in Houston, Texas. Screening status was obtained by medical chart review after a 12-month follow-up period. An "intention to treat" analysis and micro costing from the patient and provider perspectives were used to estimate the costs and effects. Analysis of statistical uncertainty was conducted using nonparametric bootstrapping.

Results

The estimated cost of implementing the web-based intervention was $40 per person and the cost of the tailored intervention was $45 per person. The additional cost per person screened for the web-based intervention compared to no intervention was $2602 and the tailored intervention was no more effective than the web-based strategy.

Conclusions

The tailored intervention was less cost-effective than the web-based intervention for colorectal cancer screening promotion. The web-based intervention was less cost-effective than previous studies of in-reach colorectal cancer screening promotion. Researchers need to continue developing and evaluating the effectiveness and cost-effectiveness of interventions to increase colorectal cancer screening.

Summary

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Research Support, Non-U.S. Gov't

The Validity and Reliability of a Screening Questionnaire for Parkinson's Disease in a Community.: Jong Hun Kim, Hae Kwan Cheong, Chong Sik Lee, Sung Eun Yi, Kun Woo Park; J Prev Med Public Health. 2010;43(1):9-17.; DOI: https://doi.org/10.3961/jpmph.2010.43.1.9

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Abstract PDF

OBJECTIVES
Parkinson's disease is one of the most common neurodegenerative diseases in the elderly population. In order to estimate the prevalence of Parkinson's disease in the community, the application of a good screening tool is essential. We evaluated the validity and reliability of a Parkinson's disease screening questionnaire and propose an alternative measure to improve its validity for use in community surveys. METHODS: We designed the study in a three-phase approach consisting of a screening questionnaire, neurologic examination, and confirmatory examination. A repeated survey was administered to patients with disease detected in the community and on 150 subjects. We examined internal consistency using Cronbach's alpha test, test-retest reliability using the kappa statistic, and validity using sensitivity, specificity, and ROC curves. Unadjusted odds ratios were utilized for the estimation of weights for each questionnaire item. RESULTS: The Cronbach's alpha of the questionnaire was 0.708. The kappa statistic for test-retest reliability was good to generally fair in most of the items. When newly proposed weighting scores were used, the optimum cut-off value was 7/8. When cut-off value was 5/6 for surveying prevalence in a community, the sensitivity was 0.98, and the specificity was 0.61, with simultaneous improvement in reliability. CONCLUSIONS: We recommend 5/6 as the ideal cut-off value for the survey of PD prevalence in community. This questionnaire designed for the Korean community could help future epidemiologic studies of PD.

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English Abstracts

Factors Associated with Cancer Screening Intention in Eligible Persons for National Cancer Screening Program.: Rock Bum Kim, Ki Soo Park, Dae Yong Hong, Cheol Heon Lee, Jang Rak Kim; J Prev Med Public Health. 2010;43(1):62-72.; DOI: https://doi.org/10.3961/jpmph.2010.43.1.62

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Abstract PDF

OBJECTIVES
To identify factors associated with cancer screening intention using the Theory of Planned Behavior (TPB). METHODS: Among 55,920 eligible persons for National Cancer Screening Program (NCSP) in J city, 1,100 individuals were contacted. Of these, 797 were interviewed using a structured questionnaire. Thirty-six responses were excluded due to incomplete data. The remaining 761 completed questionnaires were analyzed to find factors associated with cancer screening intention. RESULTS: Cancer screening intention was significantly associated with behavioral attitude (p<0.01) and subjective norm (p<0.01), but not with perceived behavioral control (p=0.29) in the TPB model. These three constructs explained 29.7% of cancer screening intention in multiple linear regression analysis. External factors such as socio-demographic status, health and health behavior variables explained 8.9% of screening intention. Among them, household monthly income, past cancer screening experience, exercise and daily eating habit were significantly associated with screening intention. CONCLUSIONS: Cancer screening intention may be influenced by focusing attitude, subjective norm in TPB model and other external factors. However, further studies are warranted to identify factors influencing cancer screening intention and behavior.

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The Determinants of the Use of Opportunistic Screening Programs in Korea.: Sungwook Kang, Chang Hoon You, Young Dae Kwon; J Prev Med Public Health. 2009;42(3):177-182.; DOI: https://doi.org/10.3961/jpmph.2009.42.3.177

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Abstract PDF

OBJECTIVES
Both organized and opportunistic screening programs have been widely used in Korea. This paper examined the determinants of the use of opportunistic screening programs in Korea. METHODS: The subjects were a national stratified random sample of 10,254 people aged 45 or older from the first wave of the Korean Longitudinal Study of Ageing in 2006. A logit model was used to examine the determinants of the use of opportunistic screening programs in terms of the demographic and socioeconomic characteristics, the type of health insurance and the health status. RESULTS: Thirteen point seven percent of the individuals received opportunistic screening programs within 2 years from the time the survey was conducted in 2006. The individuals who graduated from college or who had even more education were 3.0 times more likely to use opportunistic screening programs compared with the individuals who were illiterate. The individuals who resided in urban areas and who had religious beliefs were more likely to receive opportunistic screening programs compared with their counterparts. Those who were in the first quartile for the total household assets were 2.6 times more likely to use opportunistic screening programs than those who were in the fourth quartile for the total household assets. Privately insured people were 1.6 times more likely to use opportunistic screening programs than those who were not insured. Finally, the individuals who self-assessed their health status as worst were 2.1 times more likely to use opportunistic screening programs compared individuals who self-assessed their health status as best. CONCLUSIONS: This study suggests that opportunistic screening programs can be an indicator for whether or not an individual is among the advantaged group in terms of their socioeconomic characteristics and type of health insurance.

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Participation inequality in the National General Health Examination based on enterprise size
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Sujeong Shin, Yun-Mi Song, Hyeonyoung Ko, Yoon-Ho Choi, Woo Yong Lee, Son Mi Chung, Sunyoung Park, Insub Kim, Jinyoung Shin
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The Factors Associated with Changes in the Stage of Breast Cancer Screening Behavior among the Woman who are Eligible for the Korean National Cancer Screening Program.: Hyo Kyung Son, Sin Kam, Ki Soo Park, Jang Rak Kim, Rock Bum Kim, Sun Kyun Park; J Prev Med Public Health. 2009;42(2):109-116.; DOI: https://doi.org/10.3961/jpmph.2009.42.2.109

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Abstract PDF

OBJECTIVES
This study was performed to evaluate the relationships between psychosocial characteristics and changes in the stage of breast cancer screening behavior. METHODS: The 474 study subjects were randomly sampled from 21,459 women (age range, 40-70 years) who were eligible for the Korean National Cancer Screening Program in 2006 in Jinju, Gyeongsangnam-do. The information, including behaviors and sociodemographic characteristics, attitudes, subjective norms and self-efficacy, was collected by trained interviewers via home visits. The breast cancer screening stages were grouped as precontemplation, contemplation, action, maintenance and relapse, according to Rakowski. RESULTS: Of the 474 women, 18.8% were in the precontemplation stage, 23.3% were in the contemplation stage, 13.1% were in the action stage, 36.6% were in the maintenance stage, and 8.2% were in the relapse stage. The distribution of stages was associated with attitude, subjective norms and self-efficacy (p for trend<0.01). To investigate the overall relationship between the variables, we conducted a linear structural equation model analysis based on the theory of planned behavior. The subjective norms and self-efficacy influenced the stage of the women's screening behavior. CONCLUSIONS: We should target on self-efficacy about the screening behavior of women by performing timely, thoughtful interventions. The support from family members, friends and other people is crucial for women to undergo breast cancer screening and to improve the breast cancer screening rate.

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Original Article

Socioeconomic Disparities in Breast Cancer Screening among US Women: Trends from 2000 to 2005.: Jaeyoung Kim, Soong Nang Jang; J Prev Med Public Health. 2008;41(3):186-194.; DOI: https://doi.org/10.3961/jpmph.2008.41.3.186

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Abstract PDF

OBJECTIVES
This study describes trends in the socioeconomic disparities in breast cancer screening among US women aged 40 or over, from 2000 to 2005. We assessed 1) the disparities in each socioeconomic dimension; 2) the changes in screening mammography rates over time according to income, education, and race; and 3) the sizes and trends of the disparities over time. METHODS: Using data from the Behavioral Risk Factor Surveillance System (BRFSS) from 2000 to 2005, we calculated the age-adjusted screening rate according to relative household income, education level, health insurance, and race. Odds ratios and the relative inequality index (RII) were also calculated, controlling for age. RESULTS: Women in their 40s and those with lower relative incomes were less likely to undergo screening mammography. The disparity based on relative income was greater than that based on education or race (the RII among low-income women across the survey years was 3.00 to 3.48). The overall participation rate and absolute differences among socioeconomic groups changed little or decreased slightly across the survey years. However, the degree of each socioeconomic disparity and the relative inequality among socioeconomic positions remained quite consistent. CONCLUSIONS: These findings suggest that the trend of the disparity in breast cancer screening varied by socioeconomic dimension. ontinued differences in breast cancer screening rates related to income level should be considered in future efforts to decrease the disparities in breast cancer among socioeconomic groups. More focused interventions, as well as the monitoring of trends in cancer screening participation by income and education, are needed in different social settings.

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English Abstracts

Factors Associated with Gastric Cancer Screening of Koreans Based on a Socio-ecological Model.: Sang Soo Bae, Heui Sug Jo, Dong Hyun Kim, Yong Jun Choi, Hun Jae Lee, Tae Jin Lee, Hye Jean Lee; J Prev Med Public Health. 2008;41(2):100-106.; DOI: https://doi.org/10.3961/jpmph.2008.41.2.100

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Abstract PDF

OBJECTIVES
We measured behavioral factors associated with Koreans receiving gastric cancer screening based on a socio-ecological model, in part to develop strategies to improve cancer screening rates. METHODS: A telephone survey was conducted with 2,576 people chosen through stratified random sampling from April 1- May 31, 2004. Collected information included gastric cancer screening, socio-demographic factors, and socio-ecological factors at intrapersonal, interpersonal, community, and public policy levels. RESULTS: Among 985 survey respondents (380 men and 605 women), 402 had received gastric cancer screening. Logistic analysis was performed to compare those screened and unscreened. 'Age' was the only demographic factor that showed a statistically significant association with getting screening. People in their fifties (OR=1.731, 95% CI=1.190-2.520) and sixties (OR=2.098, 95% CI=1.301-3.385) showed a higher likelihood of getting screened, compared to those in the forties. 'Accessibility to a medical institution' was a significant factor related to having gastric cancer screening at the intrapersonal level. At the interpersonal level, recommendations by family members to be screened and a family practice of routine cancer screening were significantly related. People with frequent education about cancer screening or with stronger social feelings that cancer screening is necessary also demonstrated significantly higher tendencies to be screened. CONCLUSIONS: In conclusion, a socio-ecological model seems appropriate for explaining gastric cancer screening behavior and associated factors. Health planners should develop integrated strategies to improve cancer screening rates based on socio-ecological factors, especially at the interpersonal and community levels.

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Intentions to undergo primary screening with colonoscopy under the National Cancer Screening Program in Korea
Kyeongmin Lee, Haejoo Seo, Sunho Choe, Seung-Yong Jeong, Ji Won Park, Mina Suh, Aesun Shin, Kui Son Choi, Filipe Prazeres
PLOS ONE.2021; 16(2): e0247252. CrossRef
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Derrick Ssewanyana, Amina Abubakar, Anneloes van Baar, Patrick N. Mwangala, Charles R. Newton
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The Factors Related to the Non-Practice of Cancer Screening in Cancer Survivors: Based on the 2007-2012 Korean National Health and Nutrition Examination Survey
Song-Ei Yang, Nam-Kyung Han, Sun-Mi Lee, Tae-Hyun Kim, Woojin Chung
Health Policy and Management.2015; 25(3): 162. CrossRef
Study on the Factors Related With Intention of Cancer Screening Among Korean Residents
Bong Ki Kim, Heui Sug Jo, Hey Jean Lee
Asia Pacific Journal of Public Health.2015; 27(2): NP2133. CrossRef
Colorectal Cancer Screening in Korean Workers
Su Ho Park, Gwang Suk Kim
Cancer Nursing.2014; 37(4): 278. CrossRef
Socioecological Perspectives on Cervical Cancer and Cervical Cancer Screening Among Asian American Women
Jongwon Lee, Mauricio Carvallo
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Effectiveness of Interventions to Increase Screening for Gastric and Colorectal Cancer in Korea
Nam Soo Hong, Sin Kam
Asian Pacific Journal of Cancer Prevention.2014; 15(21): 9147. CrossRef
The Relationship between Socioeconomic Status and Gastric Cancer Screening in the Population of a Metropolitan Area
Hyun-Suk Oh, Sun A Kim, Sun-Seog Kweon, Jung-Ae Rhee, So-Yeon Ryu, Min-Ho Shin
Journal of agricultural medicine and community health.2013; 38(3): 174. CrossRef
Factors Affecting Diabetic Screening Behavior of Korean Adults: A Multilevel Analysis
Hyeongsu Kim, Minjung Lee, Haejoon Kim, Kunsei Lee, Sounghoon Chang, Vitna Kim, Jun Pyo Myong, Soyoun Jeon
Asian Nursing Research.2013; 7(2): 67. CrossRef
Multilevel Analysis of Health Care Service Utilization among Medical Aid Beneficiaries in Korea
Yang Heui Ahn, Ok Kyung Ham, Soo Hyun Kim, Chang Gi Park
Journal of Korean Academy of Nursing.2012; 42(7): 928. CrossRef
Factors Associated with the Use of Gastric Cancer Screening Services in Korea: The Fourth Korea National Health and Nutrition Examination Survey 2008 (KNHANES IV)
Ji-Yeon Shin, Duk-Hee Lee
Asian Pacific Journal of Cancer Prevention.2012; 13(8): 3773. CrossRef
Relationships between Knowledge about Early Detection, Cancer Risk Perception and Cancer Screening Tests in the General Public Aged 40 and Over
Young Hee Yang
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Behavioral risk factors and use of preventive screening services among spousal caregivers of cancer patients
Ki Young Son, Sang Min Park, Chi Hoon Lee, Geum Jeong Choi, DaeGeun Lee, SeoungHee Jo, Se Hoon Lee, BeLong Cho
Supportive Care in Cancer.2011; 19(7): 919. CrossRef
The Effects of Daughter's Breast Health Education on Mother's Breast Cancer Screening Attitude
Hee Sun Kang, Myung-Sun Hyun, Mijong Kim
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Factors associated with use of gastric cancer screening services in Korea
Young Min Kwon, Hyung Taek Lim, Kiheon Lee, Be Long Cho, Min Sun Park, Ki Young Son, Sang Min Park
World Journal of Gastroenterology.2009; 15(29): 3653. CrossRef

Trend of Socioeconomic Inequality in Participation in Cervical Cancer Screening among Korean Women.: Soong Nang Jang, Sung il Cho, Seung Sik Hwang, Kyunghee Jung-Choi, So Young Im, Ji Ae Lee, Minah Kang Kim; J Prev Med Public Health. 2007;40(6):505-511.; DOI: https://doi.org/10.3961/jpmph.2007.40.6.505

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Abstract PDF

OBJECTIVES
While cervical cancer is one of the leading cancers among women worldwide, there are a number of effective early detection tests available. However, the participation rates in cervical cancer screening among Korean women remain low. After the nationwide efforts in 1988 and thereafter to encourage participation in cervical cancer screening, few studies have investigated the effects of socioeconomic inequality on participation in cervical cancer screening. The purpose of this study was to investigate 1) the level of socioeconomic disparities in receiving cervical cancer screening by age group and 2) if there was an improvement in reducing these disparities between 1995 and 2001. METHODS: Using data from the Korean National Health Status, Health Behavior and Belief Survey in 1995, and the Korean National Health and Nutrition Examination Surveys from 1998 and 2001 (sample sizes of 2,297, 3,738, and 3,283), age-standardized participation rates were calculated according to education level, equivalized household income, and job status. Odds ratios and the relative inequality index (RII) were also calculated after controlling for age. RESULTS: Women with lower education levels were less likely to attend the screening test, and the disparities by education level were most pronounced among women aged 60 years and older. The RIIs among women 60 years and older were 3.64, 4.46, and 8.64 in 1995, 1998, and 2001, respectively. Higher rates of participation were reported among those in the highest income category, which was more notable among the middle aged women (40s and 50s). An inconsistent trend in the rate of participation in cervical cancer screening by occupational level was found. CONCLUSIONS: Indicators of socioeconomic position seem to have varying impacts on the inequalities in the rates of participation in cervical cancer screening according to age group. These results demonstrate the need for more aggressive and age-based interventions and policy programs to eliminate the remaining inequalities.

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Factors Influencing the of Middle-Aged Men the NCSP(National Cancer Screening Program)
Geum-Ja Park, Kyoung-Min Lim, Sook-Nam Kim
The Korean Journal of Health Service Management.2016; 10(3): 51. CrossRef
Educational Inequality in Female Cancer Mortality in Korea
Mi-Hyun Kim, Kyunghee Jung-Choi, Hyoeun Kim, Yun-Mi Song
Journal of Korean Medical Science.2015; 30(1): 1. CrossRef
Determinants of gastric cancer screening attendance in Korea: a multi-level analysis
Yunryong Chang, Belong Cho, Ki Young Son, Dong Wook Shin, Hosung Shin, Hyung-Kook Yang, Aesun Shin, Keun-Young Yoo
BMC Cancer.2015;[Epub] CrossRef
The Relationship between Socioeconomic Status and Gastric Cancer Screening in the Population of a Metropolitan Area
Hyun-Suk Oh, Sun A Kim, Sun-Seog Kweon, Jung-Ae Rhee, So-Yeon Ryu, Min-Ho Shin
Journal of agricultural medicine and community health.2013; 38(3): 174. CrossRef
Equity in health care: current situation in South Korea
Hong-Jun Cho
Journal of the Korean Medical Association.2013; 56(3): 184. CrossRef
Trends in Cervical Cancer Mortality by Socioeconomic Status in Korean Women between 1998 and 2009
Mi-Hyun Kim, Yun-Mi Song, Bo-Kyoung Kim, Sung-Min Park, Gwang Pyo Ko
Korean Journal of Family Medicine.2013; 34(4): 258. CrossRef
Socioeconomic disparity in cervical cancer screening among Korean women: 1998–2010
Minjee Lee, Eun-Cheol Park, Hoo-Sun Chang, Jeoung A Kwon, Ki Bong Yoo, Tae Hyun Kim
BMC Public Health.2013;[Epub] CrossRef
Predictors Associated with Repeated Papanicolaou Smear for Cervical Cancer Screening
Eun-Joo Lee, Jeong-Sook Park
Asian Oncology Nursing.2013; 13(1): 28. CrossRef
Regional Factors Associated with Participation in the National Health Screening Program: A Multilevel Analysis Using National Data
Hyung-Kook Yang, Dong-Wook Shin, Seung-Sik Hwang, Juwhan Oh, Be-Long Cho
Journal of Korean Medical Science.2013; 28(3): 348. CrossRef
Social Determinants of Smoking Behavior: The Healthy Twin Study, Korea
Youn Sik Kim, Hansoo Ko, Changgyo Yoon, Dong-Hun Lee, Joohon Sung
Journal of Preventive Medicine and Public Health.2012; 45(1): 29. CrossRef
Factors Associated with the Use of Gastric Cancer Screening Services in Korea: The Fourth Korea National Health and Nutrition Examination Survey 2008 (KNHANES IV)
Ji-Yeon Shin, Duk-Hee Lee
Asian Pacific Journal of Cancer Prevention.2012; 13(8): 3773. CrossRef
Human papillomavirus 16/18 AS04-adjuvanted cervical cancer vaccine: immunogenicity and safety in 15-25 years old healthy Korean women
Seung Cheol Kim, Yong Sang Song, Young-Tae Kim, Young Tak Kim, Ki-Sung Ryu, Bhavyashree Gunapalaiah, Dan Bi, Hans L Bock, Jong-Sup Park
Journal of Gynecologic Oncology.2011; 22(2): 67. CrossRef
Factors associated with use of gastric cancer screening services in Korea
Young Min Kwon, Hyung Taek Lim, Kiheon Lee, Be Long Cho, Min Sun Park, Ki Young Son, Sang Min Park
World Journal of Gastroenterology.2009; 15(29): 3653. CrossRef
Précarité sociale, cancer et vulnérabilité psychique, lien direct ou indirect ?
A. Fernandez, G. Noël
Psycho-Oncologie.2008; 2(4): 250. CrossRef
Socioeconomic Disparities in Breast Cancer Screening among US Women: Trends from 2000 to 2005
Jaeyoung Kim, Soong-Nang Jang
Journal of Preventive Medicine and Public Health.2008; 41(3): 186. CrossRef

Factors Influencing the Intention to have Stomach Cancer Screening.: Myung Il Hahm, Kui Son Choi, Su Yeon Kye, Min Son Kwak, Eun Cheol Park; J Prev Med Public Health. 2007;40(3):205-212.; DOI: https://doi.org/10.3961/jpmph.2007.40.3.205

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Abstract PDF

OBJECTIVES
The purpose of this study was to identify the factors influencing the intention to have stomach cancer screening using the theory of planned behavior (TPB) in Korea. METHODS: For this population-based study, 1,535 adult respondents (aged 40 to 70 years) were recruited using multi-stratified random sampling and a face-to-face administered questionnaire. This study was based on Ajzen's theory of planned behavior. Intentions were divided into three scenarios for fee payment in the next two years: (1) free of charge, (2) co-payment, and (3) full charge. Multiple linear regression was used to identify the factors influencing the intention to have stomach cancer screening. RESULTS: Perceived behavioral control and attitude toward stomach cancer screening were significant predictors of the intention to have stomach cancer screening. However, subjective norm only influenced the intention to have stomach cancer screening with full charge in the next two years. CONCLUSIONS: The results suggest that attitude and perceived behavioral control are likely to contribute toward increasing the intention to have stomach cancer screening. Especially, perceived behavioral control is a good predictor. Because the study subjects were nation wide residents, the study results can be generalized.

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The impact of educational intervention based on the theory of planned behavior on preventive behaviors for gastric cancer in obese and smoking individuals
Siamak Najafi, Fatemeh Mohammadkhah, Saina Alempour Salemi, Amirhossein Kamyab, Ali Khani Jeihooni
BMC Cancer.2025;[Epub] CrossRef
A Structural Equation Modeling of Prostate Cancer Screening Intention
Ji Hye Jeong, Nam Hee Park
Journal of Korean Academy of Community Health Nursing.2019; 30(4): 471. CrossRef
Factors Influencing the of Middle-Aged Men the NCSP(National Cancer Screening Program)
Geum-Ja Park, Kyoung-Min Lim, Sook-Nam Kim
The Korean Journal of Health Service Management.2016; 10(3): 51. CrossRef
Quels sont les facteurs psychosociaux déterminant la participation au dépistage du cancer colorectal ? Intérêt de la théorie du comportement planifié et du concept de coping
A. Le Bonniec, K. Djoufelkit, F. Cousson-Gélie
Psycho-Oncologie.2015; 9(2): 108. CrossRef
Barriers to Cancer Screening among Medical Aid Program Recipients in the Republic of Korea: A Qualitative Study
Yoon Young Lee, Jae Kwan Jun, Mina Suh, BoYoung Park, Yeol Kim, Kui Son Choi
Asian Pacific Journal of Cancer Prevention.2014; 15(2): 589. CrossRef
Factors Affecting Cancer Screening Intention and Behavior of the Korean Elderly
Hee-Jung Kim, Hyun-Woo Yim, Nam-Cho Kim
Asian Pacific Journal of Cancer Prevention.2014; 15(19): 8461. CrossRef
Regional Factors Associated with Participation in the National Health Screening Program: A Multilevel Analysis Using National Data
Hyung-Kook Yang, Dong-Wook Shin, Seung-Sik Hwang, Juwhan Oh, Be-Long Cho
Journal of Korean Medical Science.2013; 28(3): 348. CrossRef
Factors Associated with Cancer Screening Intention in Eligible Persons for National Cancer Screening Program
Rock-Bum Kim, Ki-Soo Park, Dae-Yong Hong, Cheol-Heon Lee, Jang-Rak Kim
Journal of Preventive Medicine and Public Health.2010; 43(1): 62. CrossRef
Factors Associated with Gastric Cancer Screening of Koreans Based on a Socio-ecological Model
Sang Soo Bae, Heui Sug Jo, Dong-Hyun Kim, Yong-Jun Choi, Hun Jae Lee, Tae Jin Lee, Hye Jean Lee
Journal of Preventive Medicine and Public Health.2008; 41(2): 100. CrossRef

A Review of Power and Sample Size Estimation in Genomewide Association Studies.: Ae Kyung Park, Ho Kim; J Prev Med Public Health. 2007;40(2):114-121.; DOI: https://doi.org/10.3961/jpmph.2007.40.2.114

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Power and sample size estimation is one of the crucially important steps in planning a genetic association study to achieve the ultimate goal, identifying candidate genes for disease susceptibility, by designing the study in such a way as to maximize the success possibility and minimize the cost. Here we review the optimal two-stage genotyping designs for genomewide association studies recently investigated by Wang et al(2006). We review two mathematical frameworks most commonly used to compute power in genetic association studies prior to the main study: Monte-Carlo and non-central chi-square estimates. Statistical powers are computed by these two approaches for case-control genotypic tests under one-stage direct association study design. Then we discuss how the linkagedisequilibrium strength affects power and sample size, and how to use empirically-derived distributions of important parameters for power calculations. We provide useful information on publicly available softwares developed to compute power and sample size for various study designs.

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Sample Size and Statistical Power Calculation in Genetic Association Studies
Eun Pyo Hong, Ji Wan Park
Genomics & Informatics.2012; 10(2): 117. CrossRef
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Genomics & Informatics.2009; 7(3): 148. CrossRef

Original Articles

Availability of the Time and Change Test in Screening for Dementia in the Elderly.: Jung Ae Rhee, Eun Kyung Chung, Min Ho Shin; Korean J Prev Med. 2003;36(2):101-107.

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Abstract PDF: OBJECTIVES
Dementia has emerged as a leading public health problem in elderly persons, and its early detection is important for the treatment of curable cases, and in the educational support for other family members. Although dementia screening tests are available, they have not gained widespread use in community or primary care settings. Our goal was to validate the Time and Change (T and C) Test, -including its validity and reliability in patients, and to assess it as a simple, standardized method for the screening of dementia in the rural elderly. METHODS: The participants in this study comprised of 59 patients from an urban hospital and 405 persons from a rural community aged 65 years or older. The time test evaluated the understanding of clock hands indicating 11: 10, and the change test the ability to make 1, 000 Won from a group of coins, consisting of one 500, seven 100, and seven 50 Won coins. The T and C ratings were validated against a reference standard based on the physician? diagnosis of the patients. The convergent validity in relation to other cognitive measure, test-retest agreement, and inter-observer reliability were assessed. To assess the relationship between the Korean Mini-Mental State Exam (K-MMSE) and the T and C Test, the mean K-MMSE scores were compared with the results of the T and C Test in the elderly from a rural community. RESULTS: The T and C Test had a sensitivity and specificity of 73.0, and 90.9%, and positive and negative predictive values of 93.1, and 66.7%, respectively. The test-retest and inter-observer agreement rates were both 95%. The K-MMSE scores and T and C Test were significantly related in the elderly from a rural community (p< 0.01). The T and C Test was not influenced by the educational status. The Time and Change Tests took a mean of 6.3 and 12.7 seconds, respectively, to complete. CONCLUSION: The T and C Test is a simple, accurate and reliable, performance-based tool in the screening for dementia. Because it is quick, and easy-to-use, it is hoped the T and C Test will be used for the widespread cognitive screening of aging populations.; Summary

Cost-Effectiveness Analysis of a Hyperlipidemia Mass Screening Program in Korea.: Yeon Soon Cha, Young Ho Khang, Moo Song Lee, Weechang Kang, Sung Hoon Jeon, Kee Lak Kim, Sang Il Lee; Korean J Prev Med. 2002;35(2):99-106.

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Abstract PDF: OBJECTIVE
Until now, there have been no evidence-based guidelines produced for the mass screening of hyperlipidemia cases in Korea. This study was done to find the most efficient strategy for a hyperlipidemia-screening program among Korean adults. METHOD: Seven alternative strategies for hyperlipidemia screening were formulated and compared in terms of cost-effectiveness. Cost and effectiveness were estimated from social perspectives and using a two-stage screening process (initial testing and additional testing for positives from the first test). A computerized database (based on persons who had visited a health promotion center in one teaching hospital for a routine health check-up) was used to determine the cost and the outcome of various strategies. Official data was used in calculating direct and indirect costs. Effectiveness was measured according to the number of persons who needed clinical intervention for hyperlipidemia. A stratified analysis, considering age group and sex, was then done. Sensitivity analyses, focusing on several uncertain parameters, were also done. RESULTS: Of the seven test alternatives available, the most cost-effective strategy was a screening program, which consisted of an initial test of total cholesterol,high-density lipoprotein cholesterol and triglyceride. There was some variation in the rank of the cost-effectiveness ratios for the seven alternatives dependent on age group or gender. CONCLUSIONS: Current hyperlipidemia screening practice, for National Health Insurance beneficiaries, tests only the total cholesterol level with a cut-off value of 260mg/dl as an initial screening test. It is not the best strategy for cost-effectiveness, and should be modified. Different screening strategies taking age group and sex into account should be developed and used for the efficient mass screening of hyperlipidemia cases among Korean adults.; Summary

Prevalence of Congenital Heart Disease from the Elementary Student Heart Disease Screening Program.: Hong Jue Lee, Myoung Hee Kim, Jo Won Jung, Seong Ho Kim, Bo Youl Choi; Korean J Prev Med. 2001;34(4):427-436.

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Abstract PDF: OBJECTIVE
To estimate the prevalence of congenital heart disease from the 1998 student heart disease screening program. METHODS: The heart disease screening program for elementary students was conducted in Kyonggi-do, in 1998. The subjects of the present study comprised the 40,402 students who attended the schools in the catchment area of a collaborative university hospital and who participated in the primary examination. The congenital heart disease (CHD) patients were initially identified through a questionnaire about prior medical history, and further through diagnostic tests & medical examinations in the secondary & the tertiary examinations. Certain assumptions were used in the estimation of the number of CHD cases among non-participants of the secondary & tertiary examinations. The overall prevalence of CHD was estimated by adding the CHD detection rates of the participants and the estimated prevalence of the non-participants. RESULTS: Among the 40,402 primary participants, 1,655 were referred further, of whom 79.1% (1,309) participated in the secondary examination. Of these, 121 were referred to the tertiary examination, with a participation rate at this last stage of 80.2%. The positive predictive value (PPV) of the screening tools was the highest when the results of both EKG and the questionnaire were positive. Because 85.9% of the detected cases had a past history of CHD, PPV was higher when the selection criteria in the questionnaire included past CHD history than when it didnt. The CHD detection rate among the participants was 1.76 cases/1,000 and the presumed number of cases among the non-participants was 31; giving an estimated final CHD prevalence of 2.52 cases/1,000 (95% CI : 2.06-3.06). Among the identified cases of CHD, VSD (52.8%) was the most common, followed by PDA (9.7%), TOF (9.7%) & PS (9.7%). CONCLUSION: Because the characteristics of the non-participants differed from those of the participants, the estimation of prevalence was influenced by the participation rate. Of the detected cases, 85.9% had a past history of diagnosis or operation for CHD. These findings suggested that the prevalence estimated in this study may be an underestimation of the actual condition. Therefore, a birth cohort study is required in order to more accurately estimate the prevalence and the effects of the program.; Summary

Quantitative Ultrasound for Osteoporosis Screening in Postmenopausal Women.: Min Ho Shin, Hee Young Shin, Eun Kyung Jung, Jung Ae Rhee, Jin Su Choi; Korean J Prev Med. 2001;34(4):408-416.

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Abstract PDF: OBJECTIVES
To evaluate the diagnostic value of quantitative ultrasound (QUS) in the prediction of osteoporosis as defined by dual energy x-ray absorptiometry (DEXA) in postmenopausal women. METHODS: Questionnaires and height and weight measurements were used in the investigation of 176 postmenopausal women. QUS measurements were taken on the right calcaneus while bone mineral density (BMD) measurements of the lumbar spine and femoral neck were made with DEXA. The areas under the curves (AUC) of the speed of sound (SOS) for osteoporosis in the lumbar spine and femoral neck were obtained through receiver operating characteristic (ROC) analysis and evaluated. A comparison was made, for osteoporosis in the lumbar spine and femoral neck, between the AUCs of the logistic model with clinical risk factors and SOS. RESULTS: Pearson's correlation coefficients of SOS and lumbar spine BMD, and of SOS and femoral neck BMD were 0.26 and 0.37. The AUC for the logistic model in its discrimination for lumbar spine osteoporosis was 0.764, and for SOS 0.605. The AUCs for the logistic model in its discrimination for femoral neck osteoporosis and for SOS were 0.890 and 0.892, respectively. CONCLUSIONS: These results suggest that the diagnostic value of QUS as a screening tool for osteoporosis is moderate for the femoral neck, but merely low for the lumbar spine and that the predictability provided by SOS is no better than that by the sole use of clinical risk factors in postmenopausal women.; Summary

Application of the Theory of Planned Behavior and the Theory of Reasoned Action to Predicting Cervix Cancer Screening Behavior.: Kun Sei Lee, Yong Ik Kim, Chang Yup Kim, Young Soo Shin; Korean J Prev Med. 2001;34(4):379-388.

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Abstract PDF: BACKRGROUND: Cervix cancer is the most common form of cancer among Korea women. In spite of proof that cervical cancer screening could reduce death rates substantially, the screening rates reported by previous Korean studies remain stubbornly very low. Behavioral studies to increase the cervix cancer screening rate are essential in order to develop the cancer screening program. OBJECTIVE: To evaluate the factors which are related to the intention and behavior for cervix cancer screening using the Theory of Planned Behavior (TPB) and the Theory of Reasoned Action (TRA). METHODS: The survey was conducted from July 21st to 26th in 1998. Of 3,218 women, 393(12.2%) between 30 and 65 years old, voluntarily participated in the survey in the 3 Myeons in Choongju city. Charge-free cervix cancer screening was provided for the subjects 3 months later. RESULTS: The R-square of both TPB and TRA to the intention (30% and 42%, respectively) was greater than the actual behavior (21% and 13%, respectively. TPB and TRA were found to provide an appropriate framework for the study of cervix cancer screening behavior. However, TRA was more powerful in explaining the intention, not only because the perceived behavioral control component exhibited lower reliability and validity than other components(attitude and subjective norm), but also because there may have been a few limitations in this study design. Consequently, the use of TRA is preferred in attempting to explain intention and actual behavior in this study. CONCLUSIONS: This study suggests that a successful intervention program should focus on changing attitudes and reducing psychologic barriers, rather than on just providing information. Physician recommendations, and the support of family members and friends are also very important factors in cervix cancer program participation. Physicians, friends, family members, and opinion leaders in rural areas, all of whom could affect the individual subjective norm, may all have the potential to play great roles as facilitators.; Summary

The Predictive Factors to Participation in Cervical Cancer Screening Program.: Young Bok Kim, Won Chul Lee, Myung Kim, Chee Kyung Chung; Korean J Prev Med. 2001;34(3):237-243.

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Abstract PDF: OBJECTIVES
To examine the screening rate of cervical cancer in women and to find out the predictive factors for participation in cervical cancer screening programs within their life-time and within the last two years. METHODS: The data was based on self-reported questionnaires from 1,613 women whose ages ranged from 26 to 60 years; this survey was performed between December 1999 and January 2000. This study analyzed the predictive factors for participation in cervical cancer screening programs within their life-time and within the last two years. A logistic regression analysis was performed in order to derive the significant variables from the predisposing factors (demographic factor, health promotion behavior, reproductive factor), intervention factors (information channel, relation with medical staff), and proximal factors (attitude, social influence, self-efficacy). All analyses were performed by the PC-SAS 6.12. RESULTS: Our analyses showed that the screening rate for the women who received a cervical cancer screening (Pap smear) more than once within their life-time was 56.1% while those who had received one within the last two years was 34.5%. The significant factors for participation in cervical cancer screening program within their life-time were their income, married age, health promotion score, relation with medical staffs, social influence, and self-efficacy. On the other hand, age, number of pregnancies, menarche age, relation with medical staffs, social influences, and self-efficacy were significant factors for those being screened within the last two years. The predictive power of the logit model within their life-time was 68.8% and that within the last two years was 66.6%. CONCLUSION: The predictive factors for participation in cervical cancer screening program within their life-time are different from those for within the last two years, and that women's relations with medical staffs and social influences were the critical factors impacting on cervical cancer screening rates.; Summary

Cancer Screening Rate and Related Factors in Rural Area.: Kun Sei Lee, Soung Hoon Chang, Won Jin Lee; Korean J Prev Med. 2000;33(3):364-372.

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Abstract PDF: OBJECTIVES
Cancer is the second most frequent cause of death in Korea. Cancer screening tests can save lives through early detection. Enhancing the cancer screening rate is an important strategy for reducing cancer mortality. The purpose of our study was to evaluate the screening rate and related factors in a rural area. The study investigated relationships between sociodemographic characteristics, several preventive behaviors, and the experience of several cancer screening behaviors. MATERIALS AND METHODS: The study population was recruited voluntarily from the three rural areas(Myen) in Chungju city. The participants completed structured questionnaire from July 21, 1998 to July 26, 1998. RESULTS: The proportions of the study population who had previously received stomach, liver, breast, or cervix cancer screening tests were 24.5%, 18.5%, 27.0%, 59.2% respectively. The 1-year screening rates of stomach, liver, breast, and cervix cancer were 7.4%, 6.8%, 8.6%, 15.6% respectively. In multivariate logistic analysis, some sociodemographic variables, preventive behaviors, or psychological variables were significantly associated with several cancer screening tests. Those who had previously received a stomach cancer screening test were significantly associated with the presence of chronic disease, physician? recommendation, use of alcohol family history of cancer, or previous liver cancer screening test. Those who had previously received a liver cancer screening test were associated with education level, physician? recommendation and previous stomach cancer screening test. Those who had received a cervix cancer screening test were significantly associated with education level, presence of a transportation vehicle, physician? recommendation use of alcohol and previous breast cancer screening test. And those who had received a previous breast cancer screening test were significantly associated with age, marital status, and earlier cervix cancer screening test. CONCLUSION: Based on the results of this study a strategy to promote cancer screening and health objectives at the district level can be made.; Summary

Factors Affecting the Participation Rate in the Health Screening Program of Medical Insurance.: Sung Tae Youn, Han Joong Kim, Sun Ha Jee, Il Suh, Heechoul Ohrr; Korean J Prev Med. 2000;33(2):150-156.

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Abstract PDF: OBJECTIVE
To analyze the factors affecting the participation rate in the health screening program of medical insurance. METHOD: We investigated the factors associated with the participation rate in the health screening program in Korea. Data were collected at the aggregate level from 145 employee health insurance societies and 227 self-employed health insurance societies from 1995 to 1997. Data were also collected at the individual level from four health insurance societies. This study hypothesized that the participation rate of the health screening program was related to 1) the characteristics of its members and the size of the health insurance society; 2) the specifications of the health screening program; 3) the venue of the health screening institution and the interests of individuals in the health screening program; and 4) the activities of the health insurance society. We used bivariate and multiple regression models to examine the factors on the participation rate of the health screening program. RESULTS: First, in the case of dependents of on employee health insurance society, the ratio of dependents 40 years old and over, the average monthly contribution per household, the interest and satisfaction level of individuals in health screening, and the level of refunds for over-payment were all associated with the participation rate in the health screening program, accounting for 54.4% of the participation rate. Second, in case of those insured by the self-employed health insurance society, the interest and satisfaction level of individuals in health screening, the level of refunds for over-payment, and the performance level of on-the-spot health screening were statistically significant, accounting for 40.1% of the participation rate. CONCLUSION: The factors concerning the participation rate in the health screening program of medical insurance, in both a health insurance society and for individuals, were closely related to the age and gender of individuals and household contributions.; Summary

Analysis of Cancer Screening Recommendations by Physicians for Various Types of Cancer.: Yong Mun Park, Won Chul Lee, Keun Sang Yum, Jung Wan Koo, Hyeon Woo Yim, Kang Sook Lee, Hoon Kyo Kim; Korean J Prev Med. 2000;33(1):99-108.

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Abstract PDF: OBJECTIVES
The purpose of this study was to examine the present status of cancer screening recommendations(beginning age, interval, recommended screening methods, etc.) by physicians and analyze the association between physician's characteristics and the content of their recommendations. METHODS: Data were collected from March 1 to April 30 of 1997, and 373 physicians who were from different hospital settings all over Korea were interviewed by telephone about their screening recommendations for stomach, cervical and breast cancer for those who provided cancer screening services. RESULTS: For stomach cancer screening, respondents recommended that cancer screening begin at 40 years of age(57.8%), with a 1 year interval(77.2%), and by gastrofibroscopy (86.2%). For cervical cancer screening, respondents recommended that cancer screening begin at 25 years of age(42.0%), with a 1 year interval(67.8%), and by using a Pap smear(100.0%). For breast cancer screening, respondents recommended that cancer screening begin at 35 years of age(38.7%), with a 1 year interval(57.3%), and by mammography (97.3%). CONCLUSIONS: To establish appropriate cancer screening recommendations for Korea, it may be useful to consider the above results concerning medical care providers.; Summary

The Effect of Screening of Stomach Cancer on Stage Shift.: Jung Wan Koo, Won Chul Lee, Cho Hyun Park, Ji Youn Han, In Sik Chung, Nam Sun Paik, Hoon Kyo Kim; Korean J Prev Med. 2000;33(1):25-30.

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Abstract PDF: OBJECTIVES
This study was performed to evaluate the effect of stage shift according to screening of stomach cancer. METHODS: Total 840 cases of stomach cancer patients, undergone a surgical operation at Department of Surgery, Kangnam St. Mary's Hospital, The Catholic University of Korea from Jan. 1989 to Dec. 1995, were reviewed by stomach cancer working sheet, and classified as asymptomatic and symptomatic group based on the presence of subjective symptoms on their hospital visit. Their histopathologic stages were analysed. We compared the histopathologic stages of asymptomatic stomach cancer patients with those of symptomatic patients. RESULTS: From the total of 840 patients, asymptomatic patients group comprised 28 cases (3.3%). Proportion of asymptomatic patients tended to increase from 1.9% in 1990, 0.9% in 1991 to 8.6% in 1995. Proportions of asymptomatic patients by stages were 78.6% (stage I), 3.6% (stage III), 17.9% (stage IV) and that of symptomatic patients by stages were 38.2% (stage I), 16.5% (stage II), 24.8% (stage III), 19.1% (stage IV). In less than 40 years old, 50.5% of symptomatic patients were diagnosed as stage I. With increment of ages, proportions of stage I were markedly decreased. It was significantly different between proportion of early gastric cancer in asymptomatic patients (60.1%) and that in symptomatic patients (25.0%). CONCLUSIONS: We confirmed stage shift according to screening of stomach cancer. And proportion of early gastric cancer in asymptomatic patients was higher than that in symptomatic patients. This results suggest that screening of gastric cancer be important to reduce mortality and it be indirectly started from 40 years old.; Summary

Cost-benefit Analysis of Massive Screening for Inborn Errors of Metabolism in Korea.: Chang Yup Kim, Sunmean Kim, Nami Hwang; Korean J Prev Med. 1999;32(3):317-324.

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Abstract PDF: OBJECTIVES
Since 1991, nationwide massive neonatal screen-ing program for phenylketonuria (PKU) and congenital hypothyroidism have been performed in Korea. As in many other countries, efficiency of this program has not been definitely concluded. For the purpose of evaluation of this program, from the perspective of efficiency, a cost-benefit analysis was carried out. METHODS: Costs of the detection and the treatment program were compared with the projected benefit(avoided costs) that results from the prevention of the mental retardation associated with the disorders due to PKU and hypothyroidism. Costs and benefits were discounted at an annual rate of 5 %, and duration of life-long labor was assumed to be 30 years. Cost and benefit were estimated based on the detection rates of one case of PKU per 5,572 and one case of congenital hypothyroidism per 32,554 babies screened during 1991-1997. RESULTS: The benefit-cost ratio was 0.418. The sensitivity analysis for the discount rates and labor durations showed that most cost-benefit ratios were lower than one(1.0) except when discount rate was changed to 3% and detection rate to two- or threefold and/or labor duration to 40 years. CONCLUSIONS: The result of this study suggested that present program of mass screening for PKU and congenital hypothyroidism could not be justified in terms of efficiency. It doesn't coincide with the results of previous studies in major developed countries, presumably because of difference in detection rates and welfare cost for the disabled.; Summary

Factors Associated with the Use of Pap Test in a Rural Area.: Kun Sei Lee, Hye Won Koo, Won Jin Lee, Soung Hoon Chang, Keun Young Yoo; Korean J Prev Med. 1999;32(2):147-154.

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Abstract PDF: OBJECTIVES
To construct basic data to develop strategies for achieving higher Pap test coverage rate by evaluating factors associated with the use of Pap test through population-based survey. METHODS: 16.4%(671) of the 4,090 women, who were eligible population for this study, in 3 Myens of Chung-ju City participated in this study voluntarily from July 21 to 26, 1997. After basic physical examination by trained doctors, they were interviewed with structured questionnaire by well-educated interviewers. RESULTS: It shows that only 54.3% of study participants experienced Pap test. The strongest factor which is related with the use of Pap test was the history of having breast screening tests(aOR=8.71, 95% CI=4.25-17.84). Probability of ever having Pap test was also higher in married women(aOR of single=0.46, 95% CI=0.29-0.72), younger(Ptrend<0.05), more educated (Ptrend<0.001), non-smoker (aOR of smoker=0.26, 95% CI=0.12-0.55), women of ever having hepatitis test(aOR=2.60, 95% CI=1.73-3.88) in multiple linear logistic analysis. CONCLUSIONS: This study suggests that several factors significantly associated with the use of Pap test, and especially, high-risk population for cervical cancer such as women of older ages, less educated, living alone are less likely to have the Pap test. We should concentrate on encouraging high-risk women in the use of Pap test to improve Pap test coverage rate.; Summary

Comparison of Histopathologic Stages of Asymptomatic and Symptomatic Cervical Neoplasm Patients.: Hyeon Woo Yim, Won Chul Lee, In Young Hwang, Yong Il Kwon, Jong Sup Park, Hoon Kyp Kim; Korean J Prev Med. 1998;31(4):583-591.

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Abstract PDF: Screening is for the early detection and treatment of diseases in prior to development of symptoms, so that more favourable prognosis could be obtained. To evaluate efficiency of screening test for cervical neoplasms, we compared the histopathologic stages of asymptomatic cervical neoplasm patients diagnosed by screening test, with those of symptomatic patients confirmed by pathology. Total 1,120 cases of cervical neoplasm patient, diagnosed at Kang-nam St. Mary's hospital from Jan. 1990 to Dec. 1996, were reviewed by chart, and classified as asymptomatic and symptomatic group based on the presence of subjective symptoms on their hospital visit. Their histopathologic stages were analysed. The results were as follows, 1. From the total of 1,120 patient, asymptomatic group comprised 264 cases (25.5%). Asymptomatic proportion increased 15.3% in 1991 to 34.7% in 1996. 2. Mean age for the occurrence of cervical neoplasm was 44.3 +/- 10.4 years for the asymptomatic group, and 49.3+/-13.2 years for the symptomatic group, showing statistically significant differences(p=0.001). 3. Among the study subjects, 465 cases(45.0%) had CIS(carcinoma in situ), and 569 cases(55.0%) had invasive cancers. 4. Percentage of cervical neoplasm patient diagnosed at asymptomatic stages were 45.8% in twenties, 32.0% in thirties, 27.7 % in forties, 21.7% in fifties, 18.7% in sixties and 1.8% in above seventies, showing statistically significant differences according to age group(p=0.001). 5. In thirties, 87.2% of the asymptomatic patients were diagnosed as CIS and 45.0% of symptomatic patient were diagnosed as CIS. With increment of ages, CIS proportion were markedly decreased. 6. 76.9% of asymptomatic patients were diagnosed as CIS, and 34.0 % of symptomatic patients were diagnosed as CIS, suggesting screening test at asymptomatic stage can increase CIS proportion. 7. CIS proportion of asymptomatic patient was highest in thirties(40.4%) and 2nd highest in forties(34.0%). Screening test for cervical neoplasm should be actively carried out from the thirties.; Summary

Diagnostic Meaning of High Resolution Computed Tomography Compared with Chest Radiography for Screening of Welder's lung.: J H Kang, J H Chun, H W Gu, K S Ko, B C Yu, H S Sohn, J T Lee; Korean J Prev Med. 1996;29(4):853-862.

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Abstract PDF: Pneumoconiosis is one of the major problem in the field of occupational health at Korea. Therefore, the efficient diagnosis of pneumoconiosis is a hot issue on the occupational health program. The author executed this study to estimate the diagnostic value of high resolution computed tomography(HRCT) compared with chest radiography for screening of welder's lung. HRCT was introduced very recently for the diagnosis of pneumoconiosis, however, the diagnostic value for screening of welder's lung-principally nonfibrogenic and reversible-has not been evaluated. The subjects were fifty cases of welder's lung or suspected cases who had been collected between 1989 and 1994 from one shipyard and continuously followed-up on the basis of in-plant periodic health check program. We applied both chest radiography and HRCT on the same subjects from May 1 to 30, 1996. The images were evaluated by two careered radiologists independently. The findings of chest radiography were classified into four category by ILO classification, and the findings of HRCT according to the criteria of Bergin et al. The concordance between two radiologists expressed with Kendall's tau-b was 0.72 by chest radiography and 0.44 by HRCT- that is, interobserver variation of HRCT was bigger than that of chest radiography. The concordance between the two different methods was highly variable as 0.44 by radiologist A and 0.06 by radiologist B- that is, interobserver variation was very big. However, HRCT looked more detectable for the minor parenchymal change. These findings suggested that it is not appropriate to use HRCT routinely for screening of welder's lung due to lack of diagnostic criteria, and feasibility, acceptability and economic aspects. Nevertheless, HRCT might be recommendable in the case of equivocal parenchymal features on the chest radiography, unexplained respiratory symptoms, and/or lung function abnormalities suggestive of interstitial fibrosis.; Summary

An analysis of liver function test of preemployment screening for office workers.: Yeon Gyo Shin, Yong Jin Lee, Jae Eog Ahn, Kuck Hyeun Woo, Joo Ja Kim, Byung Kook Lee; Korean J Prev Med. 1995;28(3):706-714.

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Abstract PDF: This is to analyze and compare the distribution of the liver function test and its abnormal rates of the preemployment screening for office workers in asymptomatic young age groups between female and male. Liver function test(SGPT and SGOT) of 8,184 young adults(2,633 in female and 5,551 in male) were examined during the period from Jan.1,1994 to Dec. 31, 1994. The results were as follows; 1. Mean level of SGPT was 9.l+/-7.6(IU/L) in female, 21.0+/-27.9(IU/L) in male, and that of SGOT was 15.1+/-6.0(IU/L) in female, 20.5+/-26.5(IU/L) in male. There were significant differences(p<0.01) between female and male in both SPT and SGOT. And also there was significant increasing trend(p<0.05) by age groups in male for SGPT, decreasing trend(p<0.01) in female for SGOT. 2. In the abnormal rates of liver function test by the level of cut-off value, there were significant differences up to twice between the lowest and the highest cut-off value in both female(0.4% vs 0.7%) and male(6.5% vs 12.4%) 3. Abnormal rate of SGPT was 0.4% in female and 6.3% in male, and that of SGOT was 0.2% in female and 1.2% in male with significant differences between female and male in both tests.; Summary

Differences of Screening Test Results of Health Examination between Clerks and Laborers.: Jong Won Park, Dong Hoon Shin, Mi Young Lee, Suk Kwon Suh; Korean J Prev Med. 1995;28(3):543-550.

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Abstract PDF: The authors conducted a cross-sectional study to evaluate the differences of screening test results between clerks and laborers in an occupational health center in Taegu, 1992. A total of 10,207 workers was included in the study of these, male were 5,597 and female 3,610. Constitutional variables included were items of health examination and some confounding variables(sex, age, body weight and work duration). All analyses were conducted separately for each sex through the use of multiple logistic regression analysis on occupation, controlling for age, work duration, and body weight. laborers showed abnormal hearing test more often than clerks in both sexes. The blood pressure that showed statistical significance in univariate analysis in both sexes lost its significance after controlling covariates. Liver function and urine protein had statistically significant differences between two occupational groups in males and visual correction did in females. The results suggest that there are differences clerks and laborers in some of screening tests and analytic studies are needed to identify the causes of the differences.; Summary

Factors Influencing Workers' Perception and Attitude Toward Special Periodic Health Screening Test.: Si Hyun Nam, Sin Kam, Jae Yong Park; Korean J Prev Med. 1995;28(2):334-346.

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Abstract PDF: To investigate the factors influencing workers' perception and attitude toward special periodic health screening test for workers, a survey with self-administered questionnaires was performed on 279 workers who had special periodic health screening test from september 1 to October 15, 1994. A study model was developed by modifying the health belief model. The end and intermediate response variables of the model were the voluntary participation and necessity perception on the special screening for workers, and The result of analysis was consistent with the study model. Rates for the necessity perception and voluntary participation on the special1 screening for workers were 77.2%, 79.2%, respectively. Factors influencing on the voluntary participation were necessity perception, benefit of special screening for workers, and cue to action. And on the necessity perception were susceptibility and severity to occupational disease, knowledge to special screening for workers, and support of company. General and occupational characteristics influencing on the susceptibility and severity to occupational disease were sex, age, educational level, work duration, and health education. On the knowledge to special screening for workers were age, educational level, work duration, and locus-of-control. On the benefit of special screening for workers were age, locus-of-control, pride on health, and health education. Therefore, to increase the voluntary participation and necessity perception on the special periodic health screening for workers, l) if a worker is judged as occupational disease, the judgment should be widely known in his workplace, 2) the screening result forms should be directly sent to the workers themselves, 3) for the positivity of employers, the campaign and education program subjected to them should be planned, 4) health education should give the first consideration to the younger, lower educational level, and newly employed women, and its frequency should be increased and it should be more frequently dealt with occupation-related subjects, and 5) the employers should have a careful concern in not being disadvantageous to workers due to result of screening.; Summary

Hematuria among Benzidine Dye Industry Workers.: Mi A Son, Domyung Paek, Jung Kun Choi, Su Kyeong Park, Jung Soon Park, Se Min Oh, Jung Sun Park, Dong Ook Park; Korean J Prev Med. 1995;28(1):225-243.

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Abstract PDF: Benzidine Industry in Korea has started after Japan has banned its production in early 1970's. and it has been in operation in Korea for over 20 years. However, it is not known yet whether any bladder cancer has developed from benzidine exposure. This study was done to screen benzidine-exposed workers for bladder cancer, and to examine the feasibility of employing screening test at the workplace. All the workplaces that manufacture or use benzidine for more than 20 years in Korea have been covered in this study, and they include 2 benzidine manufacturing factories, 5 benzidine using factories, as well as 2 benzidine free factories as an outside control. In total, 516 workers were screened with urine stick test and urine cytology test for the evidence of hematuria and abnormal urothelial cells. Each worker was also asked about risk factors and symptoms of bladder cancer including past medical history, smoking, medication and occupational history. Benzidine in the air was measured by personal and area sampling. Out of 516 screened workers, 84(16.3%)workers showed positive hematuria in urine stick test, and 7(1.4%)workers showed degenerative cells in urine cytology tests. Those workers with abnormal urine test results who have been exposed to benzidine for more than 10 years were further screened, and, in total. 23 workers were examined with intra-venous pyelography and cystoscopy. None of those screened had any evidence of bladder cancer. When workers with only past hematuria history were included in the positive hematuria group, 96(18.5%) had positive hematuria. On the multiple logistic regression analysis, positive hematuria was significantly associated with benzidine exposure history of other occupations with elevated bladder cancer risk, pyuria and glycosuria. The association got stronger as direct benzidine exposure was accounted through individual task analysis, and as exposure duration was accounted with tenure analysis. For those with benzidine exposure with more than 10 years of tenure, the odds of having positive hematuria was elevated 2.14(95%C.I is 1.08 to 4.25) times more than for those without exposure. Even though bladder cancer was not detected for several limitations including short observation period, majority of studied workers with short latency, healthy worker effect, and low sensitivity of single screening test in a cross-sectional study, the study results suggest that hematuria screening is a feasible and very useful test for bladder cancer screening among benzidine exposed workers.; Summary

Serum Pepsinogen Levels as a Screening Test of Gastric Cancer and Adenoma in Korea.: Jang Rak Kim, Jin Hak Choi, Young Chai Kim, Ok Jae Lee, Kyu Il Cho, Han Woo Lee, Dae Yong Hong; Korean J Prev Med. 1994;27(4):677-692.

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Abstract PDF: To evaluate the validity of serum pepsinogen levels as a screening tool for gastric cancer and adenoma, immunoradiometric assays of serum pepsinogen I level (PG I), II level (PG II) and esphagogastroduodenal endoscopies were done in 757 health examlnees. Serum PG I level was higher in subjects with active duodenal ulcer (n=45, 75.2+/-34.3 microgram/l(mean+/-standard deviation), p<0.01) and gastroduodenal ulcers (n=8,756+/-19.8 microgram/l, p<0.05), and was lower in those with gastric adenoma (n=4,37.7+/-37.2 microgram/l, p<0.2) than those with normal, mild gastritis findings or ulcer scars (n=378, 56.6+/-24.9 microgram/l). Serum PG II level las higher in subjects with active duodenal ulcer (17.2+/-13.8 microgram/l, p<0.2), active gastro-duodenal ulcers (l8.3+/-7.4 microgram/l, p<0.2) and gastric carcinoma (n=3, 23.8+/-10.9 microgram/l, p<0.05) than those with normal, mild gastritis findings or ulcer scars (14.5+/-7.9 microgram/l). Serum PG I/PG 11 ratio was higher in subjects with active duodenal ulcer (5.1+/-1.6, p<0.05) and was lower in those with chronic gastritis (n=107, 4.1+/-1.7, p<0.05), gastric polyp (n=19, 3.9+/-1.4, p<0.2), gastric adenoma (n=4, 2.1+/-1.9, p<0.01) and gastric carcinoma (n=3, 2.7+/-1.2, p<0.1) than those with normal, mild gastritis findings or ulcer scars (4.5+/-1.7). Serum PG 11 level increased with age until 6th decade, whereas serum PG I/PG II ratio decreased with age in 378 subjects with normal, mild gastritis findings or ulcer scars. The screening criteria of serum PG I<70 microgram/l and PG I/PG II ratio<3.0 for detecting gastric cancer and adenorna gave a positive rate of 15.7%, sensitivity of 57.1% and specificity of 84.7%.; Summary

Cytologic screening for cervical cancer and factors related to cervical cancer.: Yong Jae Jeon, Chi Young Lee, Byung Yeol Chun, Sin Kam, Min Hae Yeh; Korean J Prev Med. 1991;24(3):428-440.

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Abstract PDF: This study was conducted to estimate the prevalence rate of cervical cancer and to investigate its risk factors. 5,417 asymptomatic married women were screened from March, 1984 to December, 1990 in Taegu city. Of 5,417 examinees, 3,817 (70.46%) were normal, 1,542 (28.7%) showed inflammatory change, 51 (0.94%) were dysplasia and 7 (0.13%) were carcinoma in situ or invasive carcinomas. The prevalence of abnormal finding (dysplasia, carcinoma in situ or invasive carcinoma) was 1,070 per 100,000 population. The prevalence of dysplasia was 940 per 100,000 and that of carcinoma in situ or invasive carcinoma was 130 per 100,000. Age-adjusted prevalence rate for abnormal finding adjusted with standard population of Taegu city was estimated to be 850 per 100,000. The prevalence of cervical cancer was significantly increased with age (P<0.05). The prevalence of cervical cancer was significantly decreased with age at marriage and educaitonal level (P<0.05). The history of induced abortion and the number of pregnancies were significantly associated with the prevalence of cervical cancer (P<0.05), whereas, the number of parity was not. Age at marriage was significantly associated with the prevalence of cervical cancer after stratification by age (P<0.05). However, the level of education, parity, induced abortion, number of pregnancies were not significant. Inflammation and human papiloma virus infection were associated with cervical cancer with odds ratio of 13.48(95% confidence interval 7.80~23.40) and 474.29 (95% confidence interval 196.80~1143.10), respectively. In conclusion, for early detection of cervical cancer it should be recommended to perform mass cytological screening. In particular, regular and periodic cytologic screening, starting at age 25, for cervical cancer should be recommended for those women who have frequent cervical inflammation and for those women married before age of 20.; Summary

Cost analysis of hypertension screening program.: Eun Cheol Park, Seung Hum Yu; Korean J Prev Med. 1989;22(3):380-388.

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Abstract PDF: To evaluate the costs the hypertension screening program of the Korea Medical Insurance Corporation, the records of the screening examinations were used. The sample size was 49,983 of the 906,554 people insured by the Corporation and was obtained by two-stage stratification random sampling. The alternatives for efficiency of the screening program, which were divided into three categories: modification of the screening test package, application of other hypertension diagnostic criteria, and selective approach of tested groups by age, were evaluated according to the cost per patient detected. The results of this study were as follows: In the hypertension screening system, the cost per patient detected was Won 30,833. The most nonsensitive test for hypertension detection was ophthalmoscopy, which was examine during the second stage of screening. If the ophthalmoscope examination was excluded, only one person was not detected, which was 0.2% of detected persons, and the cost per patient detected decreased to Won 28,098. The most efficient modification of the screening test package was measurement of blood pressure through the first and second stages of screening. The cost per patient detected by this modification was Won 24,408. The application of other diagnostic criteria, which were more restricted criteria, increased the cost per patient detected by 3.7%-6.7%. The cost per patient detected were Won 170,582 for persons less than 39 years old, Won 20,032 for persons 40 to 59 years old, and Won 8,675 for persons 60 years old and over. In conclusion, the best alternative suggested with respect to efficiency and practical application excluded the ophthalmoscope examination of second stage screening and restricted the target population to persons greater than 40 years old. The application of this alternative decreased 54.9% of the screening costs and the cost per patient detected was Won 15,222. This study was limited in that measurement of effectiveness was not of the ultimate goal of screening, which is decreasing morbidity and mortality, but was of disease detection as the short-term objective.; Summary

English Abstracts

Factors Affecting National Health Insurance Mass Screening Participation in the Disabled.: Jong Hyock Park, Jin Seok Lee, Jin Yong Lee, Ji Young Hong, So Young Kim, Seong Ok Kim, Byong Hee Cho, Yong Ik Kim, Youngsoo Shin, Yoon Kim; J Prev Med Public Health. 2006;39(6):511-519.

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Abstract PDF: OBJECTIVES
As the disabled have higher prevalence rates and earlier onsets of chronic diseases than the nondisabled, their participation in mass screening is important for the early detection and intervention of chronic diseases. Nevertheless, in Korea, the disabled have lower participation rates in mass screening services than the nondisabled. The purpose of the study was to find determinants for the participation in the National Health Insurance (NHI) mass screening program among the disabled. METHODS: In this study, the NHI mass screening data of 423,076 disabled people, which were identified using the National Disability Registry (2003), were analyzed. Of the factors affecting the participation rates in mass screenings, the following variables were included for the analysis: socioeconomic stati, such as sex, age, category of health insurance program, region and income; disability characteristics, such as disability type, and severity. A multiple logistic regression analysis was used to evaluate the association between the participation rates, disability characteristics variables and demographic variables. RESULTS: The participation rate in mass screening of the disabled was 41.3%, but was lower in females, an age of more than 70 years, self-employed and for those with an average monthly insurance premium over 133,500 Won and in metropolitan regions. The participation rate was 1.31 times lower in females than males (95% CI=1.29-1.33); 3.50 times lower in the elderly (more than 70 years) than the younger (95% CI=3.33-3.67); 1.43 times lower in those who live in metropolitan areas (95% CI=1.40-1.46); 2.59 times lower for those in a health insurance program for the self-employed than for employees (95% CI=2.56-2.63); 1.19 times lower for the higher income (more than 133,500) than the lower income group (4,400-22,000) for the average monthly insurance premium (95% CI=1.15-1.23); 2.04 times lower for those with brain palsy and stroke disabilities than with auditory impairments (95% CI= 1.97-2.11) and 3.27 times for those with severe compared to mild disabilities (95% CI=3.15-3.40). CONCLUSIONS: The disabled with high severity, and locomotive and communication disabilities have lower participation rates in mass screening services in Korea.; Summary

Developing the Predictive Model for the Group at High Risk for Colon Cancer.: Ae Kyoung Lee, Sang Yi Lee, Il Soo Park, Su Young Kim, Tae Ho Yoon, Baek Geun Jeong; J Prev Med Public Health. 2006;39(5):438-446.

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Abstract PDF: OBJECTIVES
We developed the predictive model for the incidence of colon cancer by utilizing the health screening data of the National Health Insurance in Korea. We also explored the characteristics of the high risk group for colon cancer. METHODS: The predictive model was used to determine those people who have a high risk for colon cancer within 2 years of their NHI health screening, and we excluded the people who had already been treated for cancer or who were cancer patient. The study population is the insured of the NHI, aged 40 or over and they had undergone health screening from the year 2000 to 2004, according to NHI health screening formula. We performed logistic regression analysis and used SAS Enterprise Miner 4.1. RESULTS: This study shows that there exists a higher rate of colon cancer in males than females. Also, for the population in their 60s, the incidence rate of colon cancer is much higher by 5.36 times than that for those people in their 40s. Amongst the behavioral factors, heavy drinking is the most important determinant of the colon cancer incidence (7.39 times in males and 21.51 times in females). CONCLUSIONS: Our study confirms that the major influencing factors for the incidence of colon cancer are drinking, lack of exercise, a medical history of colon polypus and a family history of colon cancer. As a result, we can choose the group that is at a high risk for colon cancer and provide customized medical information and selective management services according to their characteristics.; Summary

A Study on Scheduling Periodic Examinations for the Early Detection of Breast Cancer in Korea.: Seong Hwa Jeong, Dae Ryong Kang, Nam Wook Hur, Jinheum Kim, Soon Young Lee, Sang Hyuk Jung, Chung Mo Nam; J Prev Med Public Health. 2006;39(4):346-352.

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Abstract PDF: OBJECTIVES
The purposes of this study were to propose a screening schedule for the early detection of breast cancer among Korean women, as based on the statistical model, and to compare the efficacy of the proposed screening schedule with the current recommendations. METHODS: The development of the screening schedule for breast cancer closely followed the work of Lee and Zelen (1998). We calculated the age-specific breast cancer incidence rate from the Korea Central Cancer Registry (2003), and then we estimated the scheduling of periodic examinations for the early detection of breast cancer, using mammography, and based on the threshold method. The efficacy of the derived screening schedule was evaluated by the schedule sensitivity. RESULTS: For estimating the screening schedule threshold method, we set the threshold value as the probability of being in the preclinical stage at age 35, the sensitivity of mammography as 0.9 and the mean sojourn time in the preclinical stage as 4 years. This method generated 14 examinations within the age interval [40, 69] of 40.0, 41.3, 42.7, 44.1, 45.4, 46.7, 48.0, 49.3, 51.0, 53.2, 55.3, 57.1, 59.0 and 63.6 years, and the schedule sensitivity was 75.4%. The proposed screening schedule detected 85.2% (74.5/87.4) of the cases that could have been detected by annual screening, but it required only about 48.7% (14.0/30.0) of the total number of examinations. We also examined the threshold screening schedules for a range of sensitivities of mammography and the mean sojourn time in the preclinical stage. CONCLUSIONS: The proposed screening schedule for breast cancer with using the threshold method will be helpful to provide guidelines for a public health program for choosing an effective screening schedule for breast cancer among Korean women.; Summary

Women's Willingness to Pay for Cancer Screenin.: Min Son Kwak, Na Young Sung, Jeong Hee Yang, Eun Cheol Park, Kui Son Choi; J Prev Med Public Health. 2006;39(4):331-338.

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Abstract PDF: OBJECTIVES
The goal of this study is to measure women's willingness to pay for cancer screening and to identify those factors associated with this willingness to pay METHODS: A population-based telephone survey was performed on 1,562 women (aged 30 years or over) for 2 weeks (9-23th, July, 2004). Data about sociodemographic characteristics, health behaviors, the intention of the cancer screenings and willingness to pay for cancer screening were collected. 1,400 respondents were included in the analysis. The women's willingness to pay for cancer screening and the factors associated with this willingness to pay were evaluated. RESULTS: The results show that 76% of all respondents have a willingness to pay for cancer screening. Among those who are willing to pay, the average and median amount of money for which the respondents are willing to pay are 126,636 (s.d.: 58,414) and 120,000 won, respectively. As the status of education & the income are higher, the average amount that women are willing to pay becomes much more. The amount of money women are willing to pay is the highest during the 'contemplation' stage. Being willing to pay or not is associated with a change of behavior (transtheoretical model), the income, the concern about the cancer risk, the family cancer history, the marital status, the general health exam, age and the place of residence. Income is associated with a greater willingness to pay. Old age was associated with a lower willingness to pay. CONCLUSIONS: According to the two-part model, income and TTM are the most important variables associated with the willingness to pay for cancer screening. The cancer screening participation rate is low compared with the willingness to pay for cancer screening. It is thought that we have to consider the participants' behavior that&s associated with cancer screening and their willingness to pay in order to organize and manage cancer screening program.; Summary

Factors Associated with Cancer Screening Participation, Korea.: Min Son Kwak, Eun Chul Park, Jin Young Bang, Na Young Sung, Ji Young Lee, Kui Son Choi; J Prev Med Public Health. 2005;38(4):473-481.

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Abstract PDF: OBJECTIVES
We wanted to identify those factors associated with stomach, colon, breast and cervix cancer screening. METHODS: A population-based telephone survey was conducted for 2 weeks (the 9th-23th of July, 2004) by trained interviewers with using a questionnaire. 2, 598 respondents (females aged 30 years or over, and the males aged 40 years or over) were selected by random-digit dialing that was based on the 2000 Population and Housing Census. The data on socio-demographic, health behavior and enabling factors were collected. 2, 571 respondents were included in analysis. The cancer screening rate was classified into 2 categories : the life time screening rate and the screening rate with recommendations. RESULTS: For the 2, 571 respondents, the life time screening rate was as follows: 52.0% (Stomach), 25.3% (Colon), 55.9% (Breast) and 76.8% (Cervix). The screening rate with recommendation was as follows: 39.2% (Stomach), 20.6% (Colon), 42.5% (Breast) and 58.3% (Cervix). On a multiple logistic regression analysis of the life time screening, statistically significant relationships were observed for the screening intention, the health exam, the disease history, the age of the patients and the cancer screening rates. On a multiple logistic regression analysis of the screening with recommendation, statistically significant relationships were observed for the screening intention, the health exam, the age of the patients, the concern about the risk of cancer, the voluntary health insurance for cancer and the cancer screening rates. CONCLUSIONS: The results of this study suggest that the cancer screening intention, the health exam and the age of the patients are the most important factors to participate in life time cancer screening and also screening with recommendations. A positive association was also observed for the concern about the risk of cancer, the voluntary health insurance for cancer. It is hoped that this study will be a base line data for suggesting the representative cancer screening rate in Korea.; Summary

Participation Rate and Related Socio-demographic Factors in the National Cancer Screening Program.: Na Young Sung, Eun Cheol Park, Hai Rim Shin, Kui Son Choi; J Prev Med Public Health. 2005;38(1):93-100.

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Abstract PDF: BACKGROUND
Cancer is the leading cause of death and one of the largest burdens of disease in Korea. In 1996, the 'Ten year Plan for Cancer Control' was formulated and the government then adopted the plan as a national policy. As part of this plan, the National Cancer Screening Program (NCSP) for Medicaid recipients was formulated, and the government adapted this in 1999. For low-income beneficiaries of the National Health Insurance Corporation (NHIC), the screening program has been in place since 2002. In 2002, the target cancers of NCSP were stomach, breast and cervical cancer. This study was conducted to examine the relationships between the participation rate, the abnormal screening rate and the socio-demographic factors associated with participation in the screening program. METHODS: To analyze the participation rate and abnormal rate for the NCSP, we used the 2002 NCSP records. The information on the socio-demographic factors was available from the database of the beneficiaries in the NHIC and Medicaid. RESULTS: The participation rate of the Medicaid beneficiaries for the stomach, breast and cervical cancer screening were 9.2%, 15.5% and 15.0%, respectively, and 11.3% and 12.5%, except cervical cancer which wasn't be included in the NCSP, for the beneficiaries of the NHIC. The abnormal rate of stomach, breast and cervical cancer screening were 25.7%, 11.2% and 21.0%, respectively, for the beneficiaries of Medicaid and 42.6% and 19.4% for the beneficiaries of the NHIC. On the multiple logistic regression analysis, gender, age and place of residence were significantly associated with participation rates of the NCSP. For stomach cancer, women participated in the NCSP more than men. The participation rate was higher among people in their fifties and sixties than for those people in their forties and those people over seventy years in age. For the breast and cervical cancer, people in their fifties were more likely to participate in the NCSP than people in their forties and people over sixty. For the place of residence, people in the rural areas participated more than those people in any other places. CONCLUSIONS: The above results show that the participation rate and abnormal rate were significantly associated with the socio-demographic factors. To improve the participation rate for the NCSP, more attention should be given to the underserved groups.; Summary

Analysis of Behavioral Stage in Pap Testing by Using Transtheoretical Model.: Hye Jean Lee, Sun Hee Lee, Sang Hyuk Jung, Hai Rim Shin, Dae Kyu Oh; J Prev Med Public Health. 2005;38(1):82-92.

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Abstract PDF: OBJECTIVE
To evaluate the relationships among sociodemographic characteristics, health behaviors, levels of pros and cons and stages of change in Pap testing for uterine cervical cancer. METHODS: A questionnaire survey was performed on 560 randomly sampled people who were assigned to participate in a Pap testing program by the 'National Cancer Screening Project in 2003' between 25 September and 10 October in Gyeonggi, Korea. Data about the behaviors and intentions of Pap testing, sociodemographic characteristics, health behaviors, and levels of acknowledged benefit (pros) and barrier (cons) for Pap testing was collected. The stages of change were grouped according to behaviors and intentions of Pap testing as passive, active, and relapse. RESULTS: Logistic analysis between the passive and active groups showed that city dwellers, 'high' and 'middle' groups in terms of the individual's health belief, those who had undergone a health examination within the past 2 years, and those who had undergone hormone replacement therapy had a higher odds ratios to be in the active group. As the 'benefit' scores increased and the 'Unnecessity' scores decreased, the probabilities to be in the active group increased. According to the logistic analysis results between the active and relapse groups, those who were 60 years or older, members of the National Heath Insurance, and those who had not undergone a health examination within the past 2 years had a higher odds ratio to be in the relapse group. The 'Benefit' scores were not significant in this relationship. The probabilities of being in the relapse group increased as the 'Unnecessity' and 'Shamefulness' scores increased. CONCLUSIONS: In conclusion, health planners should inform women in the passive group of the benefits and necessity of Pap testing. It would be better to reduce the barriers to the active group of undergoing Pap smear. This study might be a useful guide for future planning of Pap testing program.; Summary

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