Data set of an AIDS clinical trial


Data set from an AIDS clinical trial designed to study the benefits of Zidovudine therapy in patients in the early stage of HIV infection. It contains interval-censored data of 1607 individuals.




A data frame with 1607 observations on the following 3 variables.


Left endpoint of censoring interval.


Right endpoint of censoring interval.


Treatment group (1=deferred therapy; 2=500 mg/day dosage; 3=1500 mg/day dosage).


Calle, M. L. and G<f3>mez, G. (2001). Nonparametric Bayesian estimation from interval-censored data using Monte Carlo methods. Journal of Statistical Planning and Inference 98, 73–87.

G<f3>mez, G., Calle, M. L. and Oller, R. (2004). Frequentist and Bayesian approaches for interval-censored data and their implementation in R. Statistical Papers 45, 139–173.

Volberding, P. A., Lagakos, S. W., Grimes, J. M., Stein, D. S., et al. (1995). A Comparison of Immediate with Deferred Zidovudine Therapy for Asymptomatic HIV-Infected Adults with CD4 Cell Counts of 500 or More per Cubic Millimeter. The New England Journal of Medicine 333, 401–407.

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