The authors administered the Medical Outcomes Study (MOS 20) Short Form Health Survey to 369 persons with HIV disease. The MOS survey measures six domains of health: physical function, role function, social function, mental health, health perception, and pain. Additional data included sociodemographics, HIV risk group, time since HIV diagnosis, symptoms (dyspnea, diarrhea, fever, chills, sweats, weight loss, weakness, numbness, memory trouble, seizures), and CD4 lymphocyte count within 3 months of the MOS survey. Bivariate analyses revealed worse MOS scores associated with older age in five health domains: physical function (p less than .01), health perception (p <.10), role function (n.s.), social function (n.s.), and mental health (n.s.). Older subjects reported less pain. When controlling for CD4 count and for sociodemographic and clinical variables, older age was significantly (p less than .05) associated with worse MOS scores in physical function, social function, and health perception, nonsignificantly associated with worse MOS scores in role function and mental health, and nonsignificantly associated with less reporting of pain.