Multivariate analysis of risk factors associated with HCV seropositivity among the general population in Wuwei.

Abbreviations: OR, odds ratio; CI, confidence interval; anti-HBc, antibody to hepatitis B.Core; HBsAg, hepatitis B surface antigen; n = number of individuals in each group.OR and p values were calculated by χ2 or Fischer’s exact test where applicable.aUse of alcohol = frequent drinking (≥5 drinks per occasion or at least seven drinks per week).