Univariate analysis for factors at the time of last hepatitis B vaccination associated with risk of first clinical AIDS or death event, stratified by HIV diagnosis era (pre-1996 versus 1996 or later).

<p>NOTE. N, number of participants with data available; HR, hazard ratio; CI, confidence interval; Anti-HBs, hepatitis B surface antibody; HCV, hepatitis C virus; DTH, delayed-type hypersensitivity; HAART, highly active antiretroviral therapy.