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Article

Relationship between Cataract Surgery and Mortality in Elderly Patients with Cataract: Nationwide Population-Based Cohort Study in South Korea

by 1,†, 2,†, 3,4, 1,* and 1,*
1
Asan Medical Center, Department of Ophthalmology, University of Ulsan College of Medicine, Seoul 05505, Korea
2
Department of Ophthalmology, Dankook University Hospital, Dankook University College of Medicine, Cheonan 31116, Korea
3
Clinical Research Center, Asan Medical Center, Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul 05505, Korea
4
Asan Medical Center, Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Seoul 05505, Korea
*
Authors to whom correspondence should be addressed.
The first two authors contributed equally to this study.
Academic Editor: Shahina Pardhan
J. Pers. Med. 2021, 11(11), 1128; https://doi.org/10.3390/jpm11111128
Received: 4 October 2021 / Revised: 27 October 2021 / Accepted: 29 October 2021 / Published: 1 November 2021
We aimed to investigate the relationship between cataract surgery and all-cause and cause-specific mortality in Korean elderly patients with cataract using the Korean National Health Insurance Service-Senior cohort database. Elderly patients (≥60 years) diagnosed with cataract from 2002 through 2012 were included. The baseline characteristics included demographics and systemic and ocular comorbidities. Adjusted Cox regression models with time-varying covariates for cataract surgery were used to assess the relationship between cataract surgery and mortality. The study cohort included 241,062 patients, of whom 127,941 were in the cataract surgery group and 113,121 were in the cataract diagnosis group. The incidence of all-cause mortality was 3.62 deaths/100 person-years and 3.19 deaths/100 person-years in the cataract surgery and cataract diagnosis groups, respectively. Cataract surgery was associated with a decreased hazard of all-cause mortality after adjusting for demographics as well as systemic and ocular comorbidities (hazard ratio (HR), 0.93; p < 0.001). A protective association was noted between cataract surgery and mortality from vascular (HR, 0.92; p < 0.001) or neurologic (HR, 0.64; p < 0.001) causes. Patients with cataract who were 85 years of age and older, women, those who had lower income, and a Charlson comorbidity index score of 5 or more, or those without glaucoma revealed the largest reductions in mortality hazards resulting from cataract surgery. View Full-Text
Keywords: cataract; cataract surgery; all-cause mortality; cause-specific mortality; NHIS-senior database cataract; cataract surgery; all-cause mortality; cause-specific mortality; NHIS-senior database
MDPI and ACS Style

Kim, J.-Y.; Chung, H.-S.; Lee, J.-S.; Lee, H.; Tchah, H. Relationship between Cataract Surgery and Mortality in Elderly Patients with Cataract: Nationwide Population-Based Cohort Study in South Korea. J. Pers. Med. 2021, 11, 1128. https://doi.org/10.3390/jpm11111128

AMA Style

Kim J-Y, Chung H-S, Lee J-S, Lee H, Tchah H. Relationship between Cataract Surgery and Mortality in Elderly Patients with Cataract: Nationwide Population-Based Cohort Study in South Korea. Journal of Personalized Medicine. 2021; 11(11):1128. https://doi.org/10.3390/jpm11111128

Chicago/Turabian Style

Kim, Jae-Yong, Ho-Seok Chung, Ji-Sung Lee, Hun Lee, and Hungwon Tchah. 2021. "Relationship between Cataract Surgery and Mortality in Elderly Patients with Cataract: Nationwide Population-Based Cohort Study in South Korea" Journal of Personalized Medicine 11, no. 11: 1128. https://doi.org/10.3390/jpm11111128

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