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- Ching-Sheng Hsu, Chun-Jen Huang, Jia-Horng Kao, Hans Hsienhong Lin, You-Chen Chao, Yen-Chun Fan, and Pei-Shan Tsai.
- Division of Gastroenterology, Department of Internal Medicine, Buddhist Tzu Chi General Hospital, Taipei Branch, Taipei, Taiwan.
- Plos One. 2013 Jan 1; 8 (7): e70458.
BackgroundInterferon-based therapy (IBT) has been the standard of care for hepatitis C virus (HCV) infection. However, conflicting results exist regarding the effects of IBT on risk of developing hepatocellular carcinoma (HCC) and cirrhosis-associated complications, and most included highly selected patients.MethodsThis 8-year cohort study was based on the Longitudinal Health Insurance Database 2000 (LHID 2000) consisting of 1,000,000 beneficiaries randomly selected from all Taiwan National Health Insurance enrollees in 2000 (>23.7 million). Patients with newly detected HCV infections (n=11,264) were classified based on treatment and clinical outcomes. IBTs were defined as regimens that included interferon- alfa, pegylated interferon- alfa -2a, or pegylated interferon- alfa -2b for at least 3 months. The Cox proportional hazards models were used to estimate the hazard ratio (HR) and associated confidence interval (CI) of HCC and cirrhosis-associated complications for IBT.ResultsThe 8-year incidence rate for HCC was 3.9% among patients who received IBT and 5.6% among those who did not. The HCC-free survival rate was significantly higher among patients receiving IBT during the 8-year period than their counterpart (adjusted HR, 0.50; 95% CI, 0.31-0.81; P= .004). Similarly, the event-free survival rates for esophageal variceal bleeding (adjusted HR, 0.45; 95% CI, 0.22-0.91; P= .026), hepatic encephalopathy (adjusted HR, 0.38; 95% CI, 0.21-0.69; P= .001), ascites (adjusted HR, 0.28; 95% CI, 0.14-0.57; P<.001), and cirrhosis (adjusted HR, 0.63; 95% CI, 0.44-0.91; P= .013) were significantly higher among patients who received IBT than those who did not, after adjustment for associated factors.ConclusionTreatment with interferon may reduce the 8-year risk of HCC and cirrhosis-associated complications in patients with chronic HCV infection.
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