Survival and evolution of clinical and laboratory diagnosis of AIDS patients have improved considerably after the start of the availability of HAART since 1996. In addition, there is a reduction in the number of hospitalizations of people living with HIV / AIDS, a decrease in opportunistic infections and an increase in chronic diseases, among them hepatic, cardiovascular, renal, among others. The studies of survival of people with AIDS are one way of assessing the epidemic situation, the parameters of the evolution of the disease, the patients' living conditions, and particularly the impact of intervention measures and policies.