During the past year many observational studies have reported on the impact
of highly active antiretroviral therapy on their patient populations. Care
should be taken when interpreting these findings because of possible biase
s due to reporting delay and loss to follow-up. The results are very encour
aging, however, suggesting dramatic reductions in the incidence of AIDS and
death, and resulting hospitalizations. Curr Opin Infect Dis 13:631-635. (C
) 2000 Lippincott Williams & Wilkins.