Cumulative survival rates in the hepatitis C and control groups. All-cause mortality was adopted as the endpoint and the results were analyzed using the Kaplan-Meier method. The hazard ratio was 0.444 (95% CI: 0.389–0.507). The solid and dotted lines indicate the hepatitis C and control groups, respectively.
Yamasaki et al. BMC Gastroenterology 2012 12:139 doi:10.1186/1471-230X-12-139