• Siu-Fung Chau, Chia-Yi Lee, Jing-Yang Huang, Ming-Chih Chou, Hung-Chi Chen, and Shun-Fa Yang.
• Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan.
• Medicina (Kaunas). 2020 Nov 18; 56 (11).

AbstractBackground and objectives: We aimed to evaluate the correlation between periodontal disease (PD) and following ocular diseases via the National Health Insurance Research Database in Taiwan. Materials and Methods: A retrospective cohort study was conducted. Subjects were regarded as having PD according to the diagnostic codes. For comparison, each subject with PD was matched to one non-PD individual from the database after exclusion. The main outcome was defined as the development of infectious keratitis, endophthalmitis, orbital cellulitis, lacrimal duct infection, uveitis and infectious scleritis. Cox proportional hazard regression was used to yield the adjusted hazard ratios (aHR) of ocular diseases between the study and control groups. Results: A total of 426,594 subjects were enrolled in both the study and control groups. In the multivariable analysis, significantly higher rates of infectious keratitis (aHR: 1.094, 95% CI: 1.030-1.161), uveitis (aHR: 1.144, 95% CI: 1.074-1.218) and infectious scleritis (aHR: 1.270, 95% CI: 1.114-1.449) were found in the study group. Concerning the PD interval, infectious keratitis (aHR: 1.159, 95% CI: 1.041-1.291) and infectious scleritis (aHR: 1.345, 95% CI: 1.055-1.714) would significantly occur in PD patients with an interval shorter than two years, individuals with a PD interval that ranged from two to five years were under a higher risk of developing uveitis (aHR: 1.184, 95% CI: 1.065-1.315) and infectious scleritis (aHR: 1.386, 95% CI: 1.125-1.708), and the rate of uveitis (aHR: 1.149, 95% CI: 1.038-1.272) was significantly higher if PD persisted more than five years. Conclusions: The presence of PD was moderately associated with the risk of developing infectious keratitis, uveitis and infectious scleritis.

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