• Am. J. Ophthalmol. · Jul 2012

    Sleep apnea and risk of retinal vein occlusion: a nationwide population-based study of Taiwanese.

    • Kun-Ta Chou, Chin-Chou Huang, Der-Chong Tsai, Yuh-Min Chen, Diahn-Warng Perng, Guang-Ming Shiao, Yu-Chin Lee, and Hsin-Bang Leu.
    • Department of Chest, Taipei Veterans General Hospital, Taipei, Taiwan.
    • Am. J. Ophthalmol. 2012 Jul 1; 154 (1): 200-205.e1.

    PurposeTo explore the relationship of sleep apnea and the subsequent development of retinal vein occlusion (RVO).DesignA retrospective nonrandomized, matched-control cohort study using the Taiwan National Health Insurance Research Database.MethodsFrom 1997 through 2007, we identified newly diagnosed sleep apnea cases in the database. A control group without sleep apnea, matched for age, gender, and comorbidities, was selected for comparison. The 2 cohorts were followed up, and the occurrence of RVO was observed.ResultsOf the 35 634 sampled patients (5965 sleep apnea patients vs 29 669 controls), 52 (0.15%) experienced RVO during a mean follow-up period of 3.72 years, including 13 (0.22%, all branch RVO) from the sleep apnea cohort and 39 (0.13%, 39 branch RVO and 10 central RVO) from the control group. Kaplan-Meier analysis revealed the tendency of sleep apnea patients toward RVO development (P = .048, log-rank test). Patients with sleep apnea experienced a 1.94-fold increase (95% confidence interval, 1.03 to 3.65; P = .041) in incident RVO, which was independent of age, gender, and comorbidities.ConclusionsSleep apnea may be an independent risk factor for RVO.Copyright © 2012 Elsevier Inc. All rights reserved.

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