• J Formos Med Assoc · Dec 2002

    Combined effects of chronic hepatitis virus infections and substance-use habits on chronic liver diseases in Taiwanese aborigines.

    • Hans-Hsienhong Lin, Li-Yu Wang, Cheng-Kuang Shaw, Mu-Liang Cheng, Wen-Kuan Chung, Hsin-Jung Chiang, Teng-Yi Lin, and Chien-Jen Chen.
    • Center of Hepatology, Tzu Chi General Hospital, Hualien, Taiwan.
    • J Formos Med Assoc. 2002 Dec 1; 101 (12): 826834826-34.

    Background And PurposeChronic liver disease (CLD) is a major cause of death in Taiwanese aborigines. The roles of substance-use habits and hepatitis B virus (HBV) and hepatitis C virus (HCV) infections in the development of CLD are not well understood in this indigenous population.MethodsA hospital-based, case-control study of 79 consecutive CLD patients and 107 non-CLD controls was performed. Serostatus of hepatitis B surface antigen (HBsAg) and antibodies against hepatitis C virus (anti-HCV) were determined in all subjects. Each subject completed an epidemiologic questionnaire about the risk factors of CLD.ResultsAtayal ethnicity, alcohol drinking, cigarette smoking, betel quid chewing, seropositivity of HBsAg and anti-HCV antibodies were associated with a significantly elevated CLD risk. In the combinatory analyses of HBsAg serostatus and substance-use habits, HBsAg-positive substance users had the highest CLD risk, followed by HBsAg-positive non-users, HBsAg-negative users, and HBsAg-negative non-users. Similarly, anti-HCV-positive alcohol drinkers and betel quid chewers had greater CLD risks than other groups. The multivariate-adjusted odds ratios (ORs) for males, Atayal ethnicity and seropositivity of HBsAg and anti-HCV were significantly elevated. There was a biologic gradient in the risk of developing CLD associated with the number of substance-use habits. The multivariate-adjusted ORs were 4.7 (95% confidence interval [CI], 1.3-16.8) and 7.9 (95% CI, 2.1-30.4) for subjects with 1-2 and 3 habits, respectively, compared to subjects with no habit.ConclusionOur data suggest that chronic HBV and HCV infections, alcohol drinking, cigarette smoking, and betel quid chewing play important roles in the development of CLD in Taiwanese aborigines.

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