RELATIONSHIP BETWEEN UVEITIS, DIFFERENT TYPES OF VIRAL HEPATITIS, AND LIVER CIRRHOSIS: A 12-Year Nationwide Population-Based Cohort Study.

Purpose: This study investigates whether patients with viral hepatitis and cirrhosis are at risk of uveitis in the years following hepatitis.
Methods: We used data from Taiwan National Health Insurance system. The cases were patients newly diagnosed with viral hepatitis from 2000 to 2011. The end point of interest was a diagnosis of uveitis. A chi-square test was used for the difference of demographic characteristics between viral hepatitis and comparison. The risk of uveitis in hepatitis was stratified using Cox proportional hazard regression.
Results: We selected 17,389 patients with viral hepatitis and 34,778 matched comparison. The risk of uveitis in hepatitis cohort was 1.30-fold (95% confidence interval = 1.01-1.69). Patients with hepatitis B virus and hepatitis C virus coinfection had the highest risk (hazard ratio = 2.88; 95% confidence interval = 1.07-7.78), and followed by only hepatitis C virus infection (hazard ratio = 1.75; 95% confidence interval = 1.10-2.79). Patients with cirrhosis had a higher risk in the multivariable model but did not attach statistic difference.
Conclusion: Patients with hepatitis B virus and hepatitis C virus coinfection had the highest risk of uveitis. In patients with hepatitis C virus and/or hepatitis B virus infection, the symptoms of uveitis should be alerted. Although these epidemiologic studies yielded informative results, the underlying mechanisms and the host's genetic factors remain to be investigated.
Competing Interests: The authors were involved in design and conduct of study; data collection; analysis, management, and interpretation of data; and preparation, review, and approval of manuscript. None of the authors have any financial/conflicting interests to disclose.