SAS code for analysis of the effect of IDV treatment among HIV-infected people
Summary: • Fit exponential distribution models for the data “time to AIDS defining or death” in each treatment groups • Plot the Kaplan-Meier estimators of the survival functions to assess the exponential distribution models • Use the log rank test to determine whether the survival experience for the two treatment groups differs • Fit Cox proportional hazards regression models with different predictors to determine the effects of IDV treatment on AIDS