Among the subset of patients with available data, there were 893
smokers (31.3 percent) and 1966 nonsmokers (68.7 percent). Cigarette
smokers with HCV genotype 2 and 3 had lower SVR than nonsmokers. However, SVR rates among smokers and nonsmokers with HCV genotype 1 were not significantly different. The lower SVR rates observed in smokers with HCV genotype 2 or 3 were not accounted for by stage of fibrosis, gender or pretreatment viral load.