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Abstract #105739 Published in IGR 23-3
Association between retinitis pigmentosa and an increased risk of primary angle closure glaucoma: A population-based cohort study
Hung MC; Hung MC; Chen YYPLoS ONE 2022; 17: e0274066
BACKGROUND: Retinitis pigmentosa (RP) is the most frequent retinal hereditary dystrophy and result in blindness if progresses. Several case reports have revealed the possible association between RP and primary angle-closure glaucoma (PACG). We conducted a population-based study to explore whether RP significantly increased the risk of PACG development. METHODS: Using the Taiwan National Health Insurance Research Database, we enrolled patients with RP into the RP group from 2001 to 2013 and included a comparison group of 1:4 age- and sex-matched individuals without RP. We performed a Cox regression analysis to estimate the crude and adjusted hazard ratios (HRs) of RP for PACG after adjustment for hypertension, diabetes, hyperlipidaemia, chronic kidney disease, and lens subluxation. RESULTS: We enrolled 6223 subjects with RP and 24892 subjects for comparison. The mean age of the cohort was 49.0 ± 18.1 years. The RP group had significantly higher percentages of diabetes mellitus, hypertension, and hyperlipidaemia. The cumulative incidence of PACG in patients with RP was 1.61%, which was significantly higher than that in the comparison group (0.81%, p < 0.0001). According to the univariate Cox regression analysis, the hazard of PACG development was significantly greater in the RP group, with an unadjusted HR of 2.09 (95% confidence interval [CI], 1.64-2.65). The increased risk persisted after adjusting for confounders (adjusted HR = 2.18; 95% CI, 1.76-2.72). CONCLUSION: This nationwide population-based cohort study showed that people with RP are at a significantly greater risk of developing PACG than individuals without RP.
Department of Medical Education, Taichung Veterans General Hospital, Taichung, Taiwan.
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