censoring status: 0=censoring, 1=HAART initiation, 2=AIDS/Death before HAART
ageatfda
age in years at time of FDA approval of first protease inhibitor
idu
history of IDU: 0=no history, 1=history
black
race: 0=not African-American; 1=African-American
cd4nadir
CD4 count (per 100 cells/ul)
References
Bacon M.C, von Wyl V., Alden C., et al. (2005). The Women's Interagency
HIV Study: an observational cohort brings clinical sciences to the
bench, Clin Diagn Lab Immunol, 12(9):1013-1019.