Journal of Preventive Medicine and Public Health

Volume 56(6); November 2023

Original Articles

Health Behaviors Before and After the Implementation of a Health Community Organization: Gangwon’s Health-Plus Community Program: Joon-Hyeong Kim, Nam-Jun Kim, Soo-Hyeong Kim, Woong-Sub Park; J Prev Med Public Health. 2023;56(6):487-494. Published online August 17, 2023; DOI: https://doi.org/10.3961/jpmph.23.121

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Abstract PDF: Objectives
Community organization is a resident-led movement aimed at creating fundamental social changes in the community by resolving its problems through the organized power of its residents. This study evaluated the effectiveness of health community organization (HCO), Gangwon’s Health-Plus community program, implemented from 2013 to 2019 on residents’ health behaviors.
Methods
This study had a before-and-after design using 2011-2019 Korea Community Health Survey data. To compare the 3-year periods before and after HCO implementation, the study targeted areas where the HCO had been implemented for 4 years or longer. Therefore, a total of 4512 individuals from 11 areas with HCO start years from 2013 to 2016 were included. Complex sample multi-logistic regression analysis adjusting for demographic characteristics (sex, age, residential area, income level, education level, and HCO start year) was conducted.
Results
HCO implementation was associated with decreased current smoking (adjusted odds ratio [aOR], 0.73; 95% confidence interval [CI], 0.57 to 0.95) and subjective stress recognition (aOR, 0.79; 95% CI, 0.64 to 0.97). Additionally, the HCO was associated with increased walking exercise practice (aOR, 1.39; 95% CI, 1.13 to 1.71), and attempts to control weight (aOR, 1.36; 95% CI, 1.12 to 1.64). No significant negative changes were observed in other health behavior variables.
Conclusions
The HCO seems to have contributed to improving community health indicators. In the future, a follow-up study that analyzes only the effectiveness of the HCO through structured quasi-experimental studies will be needed.; Summary

The Trajectory of Depressive Symptoms Across Years of Community Care Utilization Among Older Adults: A 14-Year Follow-up Study Using the ‘Korean Welfare Panel Survey’: Il-Ho Kim, Cheong-Seok Kim, Min-Hyeok Jeong; J Prev Med Public Health. 2023;56(6):495-503. Published online October 6, 2023; DOI: https://doi.org/10.3961/jpmph.23.022

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Abstract PDF: Objectives
While older adults using community care services are known to be vulnerable for depression, community care utilization (CCU) may help to improve the mental health of these elderly. To date, however, it is much less clear how CCU affects depressive symptoms in the elderly population. This study focuses on the trajectory of depressive symptoms across years of CCU among older adults in Korea.
Methods
Using the 2006-2019 Korean Welfare Panel Survey, this study is focused on elderly born in 1940 or earlier and selected 3281 persons for baseline interviews in 2006. This consisted of 35 800 person-year observations during a period of 14 years. Panel data analysis were employed to construct years of CCU.
Results
After controlling for covariates, linear term of years using community care was negatively associated with depressive symptoms, but a quadratic term was positively significant. The trajectory of depressive symptoms across the years of CCU follows a U-shaped curve. Older adults in the first year of using community care reported the highest level of depressive symptoms. However, a significant and steady decrease in depressive symptoms was observed during the following 9 years of CCU, which then gradually increased. The level of depressive symptoms at the 14th year of using community care remains significantly lower than the level at the outset of its utilization.
Conclusions
This finding implies that CCU could be beneficial for improving mental health among older adults.; Summary

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 PDF: 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

Healthcare Systems and COVID-19 Mortality in Selected OECD Countries: A Panel Quantile Regression Analysis: Jalil Safaei, Andisheh Saliminezhad; J Prev Med Public Health. 2023;56(6):515-522. Published online October 15, 2023; DOI: https://doi.org/10.3961/jpmph.23.162

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Abstract PDF: Objectives
The pandemic caused by coronavirus disease 2019 (COVID-19) has exerted an unprecedented impact on the health of populations worldwide. However, the adverse health consequences of the pandemic in terms of infection and mortality rates have varied across countries. In this study, we investigate whether COVID-19 mortality rates across a group of developed nations are associated with characteristics of their healthcare systems, beyond the differential policy responses in those countries.
Methods
To achieve the study objective, we distinguished healthcare systems based on the extent of healthcare decommodification. Using available daily data from 2020, 2021, and 2022, we applied quantile regression with non-additive fixed effects to estimate mortality rates across quantiles. Our analysis began prior to vaccine development (in 2020) and continued after the vaccines were introduced (throughout 2021 and part of 2022).
Results
The findings indicate that higher testing rates, coupled with more stringent containment and public health measures, had a significant negative impact on the death rate in both pre-vaccination and post-vaccination models. The data from the post-vaccination model demonstrate that higher vaccination rates were associated with significant decreases in fatalities. Additionally, our research indicates that countries with healthcare systems characterized by high and medium levels of decommodification experienced lower mortality rates than those with healthcare systems involving low decommodification.
Conclusions
The results of this study indicate that stronger public health infrastructure and more inclusive social protections have mitigated the severity of the pandemic’s adverse health impacts, more so than emergency containment measures and social restrictions.; Summary

An Important Strategy to Improve Adolescent Health Literacy: COVID-19 Modules in High School in Indonesia: Nurina Hasanatuludhhiyah, Visuddho Visuddho, Abdul Khairul Rizki Purba, Annette d’ Arqom, Ancah Caesarina Novi Marchianti; J Prev Med Public Health. 2023;56(6):523-532. Published online November 1, 2023; DOI: https://doi.org/10.3961/jpmph.23.113

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Abstract PDF: Objectives
During the second coronavirus disease 2019 (COVID-19) surge, cases increased sharply due to low awareness and compliance with measures to limit disease spread. Health literacy (HL) is an important component of public health initiatives, and schools are potential sources of health education to increase HL via the presentation of COVID-19 educational modules.
Methods
This cross-sectional study involved an online questionnaire administered to students from 5 high schools in Surabaya and Sidoarjo, Indonesia, 6-7 weeks after the start of government-issued directives restricting public gatherings. We collected data on each respondent’s age, gender, parental education, and socioeconomic variables. HL was determined by the Health Literacy Measure for Adolescents. We additionally measured their attitudes and behaviors related to preventing the spread of COVID-19. The students were asked if they watched the COVID-19 module at school, their feelings about vaccination, and preferred online sources of COVID-19-related information.
Results
Most of the 432 respondents had viewed COVID-19 modules at school. Module exposure was associated with significantly higher total and domain-specific HL and more positive attitudes toward government-issued COVID-19 restrictions on travel and public gatherings (p<0.05). However, behaviors to prevent COVID-19 spread and vaccine acceptance were not associated with module exposure. Most students chose social media as their source of COVID-19-related information.
Conclusions
Schools can provide information to increase adolescents’ HL and the public’s support for health initiatives to prevent or limit the spread of COVID-19.; Summary

Association Between Parental BMI and Offspring’s Blood Pressure by Mediation Analysis: A Study Using Data From the Korean National Health and Nutrition Examination Survey: Hyowon Choi, Hunju Lee, Yeon-Soon Ahn; J Prev Med Public Health. 2023;56(6):533-541. Published online October 30, 2023; DOI: https://doi.org/10.3961/jpmph.23.289

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Abstract PDF: Objectives
This study analyzed the relationship between parental body mass index (BMI; BMI_p) and hypertension in their adolescent offspring (HTN_a), focusing on the mediating effect of adolescents’ BMI (BMI_a).
Methods
Utilizing data from the Korea National Health and Nutrition Examination Survey, including participants aged 12-18, we conducted a mediation analysis while controlling for confounding factors such as age, sex, physical activity, dietary habits, household income quartile, and parents’ alcohol and smoking habits.
Results
The study included a total of 5731 participants, of whom 3381 and 5455 participants had data on fathers’ and mothers’ BMI, respectively. For adolescent systolic blood pressure (SBP_a), the father’s BMI (BMI_f) had a significant total effect (β, 0.23; 95% confidence interval [CI], 0.12 to 0.34) and average controlled mediated effect (ACME) (β, 0.27; 95% CI, 0.23 to 0.32), but the average direct effect (ADE) was not significant. The mother’s BMI (BMI_m) had a significant total effect (β, 0.17; 95% CI, 0.09 to 0.25), ACME (β, 0.25; 95% CI, 0.22 to 0.28) and ADE (β, -0.08; 95% CI, -0.16 to 0.00). For adolescent diastolic blood pressure, both BMI_f and BMI_m had significant ACMEs (β, 0.10; 95% CI, 0.08 to 0.12 and β, 0.09; 95% CI, 0.07 to 0.12, respectively), BMI_m had a significant ADE (β, -0.09; 95% CI, -0.16 to -0.02) but BMI_f had an insignificant ADE and total effect.
Conclusions
The study found that parental BMI had a significant effect on SBP_a, mediated through BMI_a. Therefore, a high BMI in parents could be a risk factor, mediated through BMI_a, for systolic hypertension in adolescents, necessitating appropriate management.; Summary

Vaccination Status and In-hospital Mortality Among Adults With COVID-19 in Jakarta, Indonesia: A Retrospective Hospital-based Cohort Study: Hotma Martogi Lorensi Hutapea, Pandji Wibawa Dhewantara, Anton Suryatma, Raras Anasi, Harimat Hendarwan, Mondastri Korib Sudaryo, Dwi Gayatri; J Prev Med Public Health. 2023;56(6):542-551. Published online October 30, 2023; DOI: https://doi.org/10.3961/jpmph.23.360

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Abstract PDF: Objectives
Prospective studies on vaccination status and mortality related to coronavirus disease 2019 (COVID-19) in low-resource settings are still limited. We assessed the association between vaccination status (full, partial, or none) and in-hospital mortality among COVID-19 patients at most hospitals in Jakarta, Indonesia during the Delta predomination wave.
Methods
We conducted a retrospective cohort study among hospitalized COVID-19 patients who met the study criteria (>18 years old and admitted for inpatient treatment because of laboratory-confirmed severe acute respiratory syndrome coronavirus 2 infection). We linked individual-level data in the hospital admission database with vaccination records. Several socio-demographic and clinical characteristics were also analyzed. A Cox proportional hazards regression model was used to explore the association between vaccination status and in-hospital mortality in this patient group.
Results
In total, 40 827 patients were included in this study. Of these, 70% were unvaccinated (n=28 543) and 19.3% (n=7882) died during hospitalization. The mean age of the patients was 49 years (range, 35-59), 53.2% were female, 22.0% had hypertension, and 14.2% were treated in the intensive care unit, and the median hospital length of stay across the group was 9 days. Our study showed that the risk of in-hospital mortality among fully and partially vaccinated patients was lower than among unvaccinated adults (adjusted hazard ratio [aHR], 0.43; 95% confidence interval [CI], 0.40 to 0.47 and aHR, 0.70; 95% CI, 0.64 to 0.77, respectively).
Conclusions
Vaccinated patients had fewer severe outcomes among hospitalized adults during the Delta wave in Jakarta. These features should be carefully considered by healthcare professionals in treating adults within this patient group.; Summary

Impact of Physical Activity on the Association Between Unhealthy Adolescent Behaviors and Anxiety Among Korean Adolescents: A Cross-sectional Study: Hyo-jung Lee, Jeong Pil Choi, Kunhee Oh, Jin-Young Min, Kyoung-Bok Min; J Prev Med Public Health. 2023;56(6):552-562. Published online November 15, 2023; DOI: https://doi.org/10.3961/jpmph.23.313

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Abstract PDF: Objectives
Adolescents who engage in unhealthy behaviors are particularly vulnerable to anxiety. We hypothesized that participation in physical activity could influence the relationship between anxiety and unhealthy behaviors in adolescents. These behaviors include smoking, alcohol consumption, and unsafe sexual activity.
Methods
This study included 50 301 students from the first year of middle school to the third year of high school, all from Korea. The unhealthy adolescent behaviors examined included current alcohol consumption, current smoking, and unsafe sexual behavior. Anxiety levels were assessed using the Generalized Anxiety Disorder-7 questionnaire (GAD-7).
Results
The participants had a mean age of 15.19 years and an average GAD-7 score of 4.23. No significant differences were observed in GAD-7 score among exercising participants when categorized by smoking status (p=0.835) or unsafe sexual behavior (p=0.489). In contrast, participants in the non-exercise group who engaged in these behaviors demonstrated significantly higher GAD-7 scores (p<0.001 and 0.016, respectively). The only significant interaction was found between unsafe sexual behavior and exercise (p=0.009). Based on logistic regression analysis, within the non-exercise group, significant positive associations were observed between current smoking and anxiety (odds ratio [OR], 1.36; 95% confidence interval [CI], 1.18 to 1.57), as well as between unsafe sexual behavior and anxiety (OR, 1.33; 95% CI, 1.02 to 1.73). However, within the exercise group, no significant association was found between anxiety and either smoking or unsafe sexual behavior. Furthermore, no significant interaction was observed between unhealthy behaviors and exercise.
Conclusions
These findings are insufficient to conclude that physical activity influences the relationship between unhealthy behaviors and anxiety.; Summary

Risks for Readmission Among Older Patients With Chronic Obstructive Pulmonary Disease: An Analysis Using Korean National Health Insurance Service – Senior Cohort Data: Yu Seong Hwang, Heui Sug Jo; J Prev Med Public Health. 2023;56(6):563-572. Published online November 10, 2023; DOI: https://doi.org/10.3961/jpmph.23.346

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Abstract PDF: Objectives
The high readmission rate of patients with chronic obstructive pulmonary disease (COPD) has led to the worldwide establishment of proactive measures for identifying and mitigating readmissions. This study aimed to identify factors associated with readmission, as well as groups particularly vulnerable to readmission that require transitional care services.
Methods
To apply transitional care services that are compatible with Korea’s circumstances, targeted groups that are particularly vulnerable to readmission should be identified. Therefore, using the National Health Insurance Service’s Senior Cohort database, we analyzed data from 4874 patients who were first hospitalized with COPD from 2009 to 2019 to define and analyze readmissions within 30 days after discharge. Logistic regression analysis was performed to determine factors correlated with readmission within 30 days.
Results
The likelihood of readmission was associated with older age (for individuals in their 80s vs. those in their 50s: odds ratio [OR], 1.59; 95% confidence interval [CI], 1.19 to 2.12), medical insurance type (for workplace subscribers vs. local subscribers: OR, 0.84; 95% CI, 0.72 to 0.99), type of hospital (those with 300 beds or more vs. fewer beds: OR, 0.77; 95% CI, 0.66 to 0.90), and healthcare organization location (provincial areas vs. the capital area: OR, 1.66; 95% CI, 1.14 to 2.41).
Conclusions
Older patients, patients holding a local subscriber insurance qualification, individuals admitted to hospitals with fewer than 300 beds, and those admitted to provincial hospitals are suggested to be higher-priority for transitional care services.; Summary

Teachers’ Negative Attitudes and Limited Health Literacy Levels as Risks for Low Awareness of Epilepsy in Turkey: Gulay Yilmazel; J Prev Med Public Health. 2023;56(6):573-582. Published online November 13, 2023; DOI: https://doi.org/10.3961/jpmph.23.330

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Abstract PDF: Objectives
For students with epilepsy, schools are a critical environment for managing the disease properly. This study examined awareness of epilepsy, attitudes toward epilepsy, and health literacy among school teachers in Turkey.
Methods
This study was conducted in a city in Turkey with 1408 public school teachers from June 2021 to September 2021.
Results
The median scores of the scales were 5, 29, and 32 for epilepsy awareness, epilepsy attitudes, and health literacy, respectively. Epilepsy awareness was higher in women, and epilepsy attitudes were more positive in women than men (p<0.05). While epilepsy awareness was higher in primary school teachers, epilepsy attitudes were more positive in secondary school teachers (p<0.05). Epilepsy awareness was lower in secondary school teachers (odds ratio [OR], 1.27; p<0.05), those who did not have an individual with epilepsy in their family/social environment (OR, 1.57; p<0.001), those who did not have a student with epilepsy in their class (OR, 1.45; p<0.05), and in those who had not witnessed an epilepsy seizure (OR,1.19; p<0.05). Compared to those with positive attitudes regarding epilepsy, epilepsy awareness was 1.36 times lower in those with negative attitudes (p<0.001). Epilepsy awareness was 1.92 times lower in those with limited health literacy than those with adequate health literacy (p<0.001).
Conclusions
In this study, low epilepsy awareness, negative epilepsy attitudes, and limited health literacy were common among teachers. The findings from this study suggest that panels, workshops, and health training on epilepsy should be organized for school teachers and included at regular intervals in certified first-aid practices.; Summary

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