Figure 2.
Effect of DQβ57Asp alleles on rate of CD4 decline. Kaplan–Meier analysis of the rate of CD4 T-cell decline to <350 cells/µl from the time of the first HIV test to greater than 14 years of infection of 159 patients in the cohort is shown. Patients who possess one or two alleles of DQβ57Asp (groups 1 or 2, respectively) were compared to those who lacked these alleles (Group 0). Cox's proportional hazard regression models were used to estimate hazard ratios and two-tailed P-values represented. The rows below the survival curve show the number of events/number of individuals still at risk at 0, 5, 10, 15 years after the first HIV test.