Cox proportional hazards analysis of factors associated with time to HCV seroconversion among PWID in the VIDUS cohort between 1996 and 2012 in Vancouver, Canada.

HR = hazard ratio;*At the time of enrolment,†In the past 6 months,¥Model 1 was assessed in the overall population and selected to assess the impact of any injecting drugs and so cocaine injecting, heroin injecting and methamphetamine injecting are not included;‡Model 2 was assessed in the overall population and selected to assess the impact of the specific contribution of cocaine injecting, heroin injecting and methamphetamine injecting and so any injecting was not included.

HR = 风险比（hazard ratio）；*入组时，†过去6个月内，¥模型1在全人群中进行评估，旨在评估任意注射吸毒的影响，因此未纳入可卡因注射、海洛因注射及甲基苯丙胺注射相关数据；‡模型2同样在全人群中开展评估，旨在探究可卡因注射、海洛因注射及甲基苯丙胺注射的特异性贡献影响，因此未纳入任意注射吸毒相关数据。