CD4 and AIDS: By multivariate Cox regression, statin use was associated with a relative hazard (RH) of 0.33 (95% CI: 0.14, 0.76, p = 0.009), adjusting for CD4, HIV-1 RNA, hemoglobin and cholesterol levels at the start of HAART, age, race, HIV risk group, prior use of ART, year of HAART start, NNRTI vs. PI-based ART, prior AIDS-defining illness, and viral hepatitis coinfection (Table 2).