Clinical and epidemiological features of 147 Chilean patients with chronic hepatitis C.
Abstract
Prevalence, modes of transmission, clinical characteristics and outcomes of hepatitis C (HCV) infection vary in different geographical areas. We aim to describe clinical and epidemiological features of Chilean patients infected with hepatitis C virus. An analysis of demographic, epidemiological, clinical and laboratory data of patients referred to a liver clinic and blood donors with chronic hepatitis C was carried out. 147 patients were evaluated, 68 (46%) were male. Median age was 56 years, median infection age was 27 years and median duration of infection was 27 years. 52.5% of the patients were cirrhotic, and estimated risk of progression to cirrhosis was 16% at 20 years from infection. Risk factors for acquisition of the disease among patients were: Blood transfusion 54%, injection drug use 5%, and risky sexual behavior 2%. No factor was identified in 43% of the patients. Twelve of 64 (18.8%) family members tested positive for HCV antibodies. Genotype 1b was predominant (82%), and 52% of patients had high viral load (>850.000 IU/mL). Liver biopsy was available in 50 patients, showing advanced fibrosis in 54%. These patients were in average 10 years older and tended to have longer duration of infection. Hepatocellular carcinoma was present at the moment of enrollment in 7 patients and developed in 4 more patients during follow up (2.4 years). In conclusion, the natural history and clinical characteristics of HCV infection in Chilean patients is similar to that described…
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