Multivariable Cox Proportional Hazard Models for Time to severe non-AIDS related event.

List of abbreviations: AIDS, acquired immunodeficiency syndrome; CI, confidence interval; HAART, highly-active antiretroviral treatment; HBsAg, hepatitis B surface antigen; HCV-Ab, hepatitis C virus antibodies; HIV, human immunodeficiency virus; INR, immunological non-responders; IR, Immunological responders; NNRTI, non-nucleoside reverse transcriptase inhibitor; PI, protease inhibitor.1 The first model was adjusted for age and gender.2 The second model was adjusted for age, gender, intravenous drug use as route of HIV transmission, pre-HAART CD4+ T-cell count, occurrence of AIDS-defining events and immunological response (Immunological non responders at year 1 versus responders). Occurrence of AIDS-defining event during follow-up was considered as time-dependent variable.* Estimates for HCV-Ab positivity were not adjusted for intravenous drug use as route of HIV transmission, due to high correlation.Multivariable Cox Proportional Hazard Models for Time to severe non-AIDS related event.