Abstract
To investigate the population-based incidence of uveitis and the differences between anterior and non-anterior uveitis using the comprehensive Korean National Health Insurance Service (NHIS) database. We extracted data of patients who visited the clinic and were diagnosed with uveitis (based on Korean Classification of Diseases) from 2010 to 2021. The incidence of uveitis, differences between the demographics, and the underlying co-morbidities of anterior uveitis, non-anterior uveitis, and control groups were investigated. We identified 919,370 cases with uveitis (anterior: 800,132; non-anterior: 119,238). The average incidences (per 10,000 persons) of anterior and non-anterior uveitis were 13.0 (95% confidence interval [CI], 12.9-13.0), and 1.9 (95% CI, 1.9-1.9), respectively. The incidence increased (2010: 13.0; 2019: 16.5) but decreased during the coronavirus disease (COVID-19) pandemic (2020: 15.5; 2021: 15.4). The non-anterior group was significantly associated with sex (female, odds ratio [OR]: 1.09, p < 0.0001), specific age range (40-69 years, p < 0.0001), high Charlson Comorbidity Index (p < 0.0001), high household income (p < 0.0001), and various immunologic diseases (antiphospholipid antibody syndrome, OR: 1.79, p < 0.0001; systemic lupus erythematosus, OR: 1.22, p < 0.0001; psoriasis, OR: 1.13, p < 0.0001; ulcerative colitis, OR: 1.11, p = 0.0013; tuberculosis, OR: 1.09, p < 0.0001; rheumatoid arthritis, OR: 1.05, p < 0.0001) compared with the anterior group. Using the NHIS database, we conducted the largest population-based epidemiological study on uveitis in South Korea to estimate its increasing incidence in the past decade (including changes during COVID-19 pandemic) as well as its anatomical distribution. Our results may be beneficial for estimating the national burden of uveitis.
Published Version
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