Journal of Preventive Medicine and Public Health

Original Articles

National Trends in Healthcare Quality in Korea: A Multidimensional Assessment Using OECD Health Care Quality Indicators (2008–2023): Hyejin Lee, Soo-Hee Hwang, Sang-A Cho, Hyemin Jung, Youngs Chang, Jieun Yun, Sanghyun Cho, Un-Na Kim, Hye Yeon Koo, Eun Byul Cho, Do Hee Kim, Jin Yong Lee; J Prev Med Public Health. 2026;59(3):225-238. Published online May 20, 2026; DOI: https://doi.org/10.3961/jpmph.26.233

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Abstract Summary PDF: Objectives
Assessing healthcare quality at the national level is essential for evaluating health system performance and identifying areas requiring improvement. This study examined long-term trends in healthcare quality in Korea from 2008 to 2023 using internationally comparable indicators.
Methods
We conducted a trend analysis of healthcare quality in Korea using the Organization for Economic Cooperation and Development (OECD) Health Care Quality and Outcomes framework and quality indicators. Indicators across multiple domains, including acute care, primary care, prescribing in primary care, mental healthcare, and patient experiences, were analyzed and compared with OECD averages.
Results
Healthcare quality in Korea improved across several domains. Thirty-day mortality for acute myocardial infarction decreased from 14.2% in 2008 to 10.2% in 2023, while mortality for ischemic stroke declined from 8.7% to 5.5%. Avoidable hospitalizations decreased substantially, with hospitalizations for chronic obstructive pulmonary disease declining by 59.7%. The proportion of patients with diabetes receiving cholesterol-lowering treatment increased from 44.1% to 82.5%. However, the proportion of broad-spectrum antibiotic prescriptions remained substantially higher than the OECD average (40.3 vs. 15.5%). In mental healthcare, excess mortality ratios increased from 4.3 in 2010 to 4.9 in 2023 for schizophrenia and from 3.5 to 4.3 for bipolar disorder, while post-discharge suicide rates showed little improvement. Patient experience indicators related to patient-physician communication improved and approached OECD averages.
Conclusions
Healthcare quality in Korea improved substantially between 2008 and 2023, particularly in acute care outcomes and chronic disease management. However, persistent challenges remain in areas such as antibiotic use, polypharmacy, and mental healthcare. These findings provide internationally comparable evidence to inform future health policy and healthcare quality improvement efforts.; Summary

Korean summary
이 연구는 OECD Health Care Quality Indicators(HCQI)를 활용하여 2008년부터 2023년까지 한국 의료의 질 변화를 주요 OECD 국가와 비교·분석하였다. 분석 결과, 한국의 급성기 치료 성과(급성심근경색과 허혈성·출혈성 뇌졸중의 30일 사망률)와 만성질환 관리 수준(천식·만성폐쇄성폐질환·심부전·당뇨병의 입원율 감소와 당뇨병 환자의 적절한 약물치료 증가)은 전반적으로 향상된 것으로 나타났다. 그러나 광범위 항생제 사용, 고령층 다약제 처방, 중증 정신질환자의 초과사망 및 퇴원 후 자살률 등은 여전히 OECD 평균 대비 취약한 영역으로 나타나, 지속적인 질 관리와 정책 개선이 필요하다.

Key Message
This study analyzed changes in healthcare quality in Korea from 2008 to 2023 compared with major OECD countries using the OECD Health Care Quality Indicators (HCQI). Acute care outcomes and chronic disease management improved overall, including reduced 30-day mortality for acute myocardial infarction and stroke and lower hospitalization rates for major chronic diseases. However, broad-spectrum antibiotic use, polypharmacy among older adults, excess mortality among patients with severe mental illness, and post-discharge suicide rates remained worse than the OECD average, highlighting the need for continuous quality improvement and policy reform.

Factors Affecting the Downward Mobility of Psychiatric Patients: A Korean Study of National Health Insurance Beneficiaries: Un-Na Kim, Yeon-Yong Kim, Jin-Seok Lee; J Prev Med Public Health. 2016;49(1):53-60. Published online December 22, 2015; DOI: https://doi.org/10.3961/jpmph.15.052

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Objectives
The purpose of this study is to examine the magnitude of and the factors associated with the downward mobility of first-episode psychiatric patients.
Methods
This study used the claims data from the Korean Health Insurance Review and Assessment Service. The study population included 19 293 first-episode psychiatric inpatients diagnosed with alcohol use disorder (International Classification of Diseases, 10th revision [ICD-10] code F10), schizophrenia and related disorders (ICD-10 codes F20-F29), and mood disorders (ICD-10 codes F30-F33) in the first half of 2005. This study included only National Health Insurance beneficiaries in 2005. The dependent variable was the occurrence of downward mobility, which was defined as a health insurance status change from National Health Insurance to Medical Aid. Logistic regression analysis was used to assess factors associated with downward drift of first-episode psychiatric patients.
Results
About 10% of the study population who were National Health Insurance beneficiaries in 2005 became Medical Aid recipients in 2007. The logistic regression analysis showed that age, gender, primary diagnosis, type of hospital at first admission, regular use of outpatient clinic, and long-term hospitalization are significant predictors in determining downward drift in newly diagnosed psychiatric patients.
Conclusions
This research showed that the downward mobility of psychiatric patients is affected by long-term hospitalization and medical care utilization. The findings suggest that early intensive intervention might reduce long-term hospitalization and the downward mobility of psychiatric patients.

Summary

Citations

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The Effect of Sleep Duration on the Risk of Unintentional Injury in Korean Adults: Yeon-Yong Kim, Un-Na Kim, Jin-Seok Lee, Jong-Heon Park; J Prev Med Public Health. 2014;47(3):150-157. Published online May 30, 2014; DOI: https://doi.org/10.3961/jpmph.2014.47.3.150

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Abstract PDF

Objectives

The decrease or increase in sleep duration has recently been recognized as a risk factor for several diseases, including hypertension and obesity. Many studies have explored the relationship of decreased sleep durations and injuries, but few have examined the relationship between increased sleep duration and injury. The objective of this research is to identify the risk for injury associated with both decreased and increased sleep durations.

Methods

Data from the 2010 Community Health Survey were used in this study. We conducted logistic regression with average sleep duration as the independent variable, injury as a dependent variable, and controlling for age, sex, occupation, education, region (cities and provinces), smoking, alcohol use, body mass index, hypertension, diabetes, arthritis, and depression. Seven categories of sleep duration were established: ≤4, 5, 6, 7, 8, 9, and ≥10 hours.

Results

Using 7 hours of sleep as the reference, the adjusted injury risk (odds ratio) for those sleeping a total of ≤4 h/d was 1.53; 1.28 for 5 hours, for 1.11 for 6 hours, 0.98 for 8 hours, 1.12 for 9 hours, and 1.48 for ≥10 hours. The difference in risk was statistically significant for each category except for the 8 and 9 hours. In this study, risk increased as the sleep duration decreased or increased, except for the 8 and 9 hours.

Conclusions

This research found that either a decrease or increase in sleep duration was associated with an increased risk for injury. The concept of proper sleep duration can be evaluated by its associated injury risk.

Summary

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