We examined the prevalence of, and factors associated with unmet healt
h service needs among persons with HIV disease. Data were examined fro
m 1,851 participants in the U.S. AIDS Cost and Service Utilization Stu
dy, drawn from 26 medical care providers in 10 cities. Geographic area
s with large numbers of AIDS cases, and health care providers within t
hem were chosen as study sires. After completing a screener questionna
ire, potential participants at each site were stratifed by illness sta
ge, HIV exposure route, and insurance status; a systematic random samp
le within those strata were selected for the study. Participants compl
eted a comprehensive survey of HIV-related service use and costs, whic
h also asked them to identify unmet health service needs. Analyses ide
ntified the relationship between unmet needs and: stage of illness, ty
pe of insurance, source of care, living arrangement, and AIDS prevalen
ce of respondents' geographic region. At least one unmet need was repo
rted by 20% of the sample. Needs for non-institutional services, e.g.,
dental care, mental health, and medications were more likely to be un
met than need for emergency room and hospital care. While most factors
significantly affected the odds of having an unmet need, the greatest
effects were found for private insurance and HIV asymptomatic status,
both of which decreased the odds of unmet needs by approximately 50%.
These findings suggest that insurance coverage for services required
during the chronic phase of HIV illness is inadequate and should be au
gmented.