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An epidemic of cataract surgery in Korea: the effects of private health insurance on the National Health Insurance Service
Hyejin Lee, Soo-Hee Hwang, Choon-Seon Park, Seol-Hee Chung, Catherine L. Chen, Jin Yong Lee, Jin Soo Lee
Epidemiol Health. 2024;46:e2024015.   Published online January 6, 2024
DOI: https://doi.org/10.4178/epih.e2024015
  • 1,808 View
  • 111 Download
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
OBJECTIVES
In Korea, the National Health Insurance Service (NHIS) covers essential healthcare expenses, including cataract surgery. To address concerns that private health insurance (PHI) might have inflated the need for such procedures, we investigated the extent of the PHI-attributable increase in cataract surgery and its impact on NHIS-reimbursed expenses.
METHODS
This retrospective, observational study uses nationwide claims data for cataract surgery from 2016 to 2020. We examined trends in utilization and cost, and we estimated the excess numbers of (1) cataract operations attributable to PHI and (2) types of intraocular lenses used for cataract surgery in 2020.
RESULTS
Between 2016 and 2020, a 36.8% increase occurred in the number of cataract operations, with increases of 63.5% and 731.8% in the total healthcare costs reimbursed by NHIS and PHI, respectively. Over a 5-year period, the surgical rate per 100,000 people doubled for patients aged <65 years (from 328 in 2016 to 664 in 2020). Among the 619,771 cases in 2020 of cataract surgery reimbursed by the Korean diagnosis-related group system, more non-NHIS-covered intraocular lenses were used for patients aged <65 years than ≥65 years (68.1 vs. 14.2%). In 2020 alone, an estimated 129,311 excess operations occurred, accounting for an excess cost of US$115 million.
CONCLUSIONS
A dramatic increase in the number and cost of cataract operations has occurred over the last 5 years. The PHI-related increase in operations resulted in increased costs to NHIS. Measures to curtail the non-indicated use of cataract surgery should be implemented regarding PHI.
Summary
Korean summary
백내장 수술에서 실손보험으로 인한 의료비 증가 수준을 확인하고 건강보험급여 비용에 미치는 영향을 조사했을 때 2016년과 2020년 사이에 백내장 수술 건수는 36.8% 증가했으며, 건강보험과 실손보험에서 지급한 총 의료 비용은 각각 63.5%와 731.8% 증가했다. 백내장 수술은 65세 미만에서 주로 증가하였으며, 이 연령층은 공단에서 급여하지 않는 고가의 인공수정체를 더 많이 사용하였다. 추정 초과 수술 건수는 2020년에만 129,311건으로 1억 1,500만 달러의 초과 비용이 발생했다.
Application of the World Health Organization Quality of Life Instrument, Short Form (WHOQOL-BREF) to patients with cataract
Ali Gholami, Mahmood Tavakoli Araghi, Fatemeh Shamsabadi, Mahdiye Bayat, Fatemeh Dabirkhani, Farhad Moradpour, Kamyar Mansori, Yousef Moradi, Abdolhalim Rajabi
Epidemiol Health. 2016;38:e2016005.   Published online February 4, 2016
DOI: https://doi.org/10.4178/epih.e2016005
  • 20,477 View
  • 355 Download
  • 15 Web of Science
  • 13 Crossref
AbstractAbstract PDF
Abstract
OBJECTIVES
Cataract is a prevalent disease in the elderly, and negatively influences patients’ quality of life. This study was conducted to study the application of the World Health Organization Quality of Life Instrument, Short Form (WHOQOL-BREF) to patients with cataract.
METHODS
In this cross-sectional study, 300 patients with cataract were studied in Neyshabur, Iran from July to October 2014. The Iranian version of the WHOQOL-BREF questionnaire was used to measure their quality of life. Cronbach’s alpha coefficient, Pearson’s correlation coefficient, the paired t-test, the independent t-test, and a linear regression model were used to analyze the data in SPSS version 16.0 (SPSS Inc., Chicago, IL, USA).
RESULTS
The mean age of the participants was 68.11±11.98 years, and most were female (53%). The overall observed Cronbach’s alpha coefficient for the WHOQOL-BREF was 0.889, ranging from 0.714 to 0.810 in its four domains. The total mean score of the respondents on the WHOQOL-BREF was 13.19. The highest and lowest mean scores were observed in the social relationship domain (14.11) and the physical health domain (12.29), respectively. A backward multiple linear regression model found that duration of disease and marital status were associated with total WHOQOL scores, while age, duration of disease, marital status, and income level were associated with domains one through four, respectively (p<0.05).
CONCLUSIONS
The reliability analysis conducted in this study indicated that the WHOQOL-BREF scale exhibited an acceptable degree of internal consistency in the measurement of the quality of life of patients with cataract. It was also found that the patients with cataract who were surveyed reported a relatively moderate quality of life.
Summary

Citations

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Epidemiol Health : Epidemiology and Health