Homeless people are one of the most vulnerable with regard to HIV transmiss
ion However, most research on this population has been carried out on sampl
es from health clinics. We surveyed 390 homeless people in Houston at a day
shelter with regard to their HIV/AIDS knowledge and risk behaviours. The s
ample was 76% African-American, 11% Euro-American, with small numbers of La
tin-Americans, Native-Americans and Asian-Americans: half were born in Texa
s, and 92% were male. Data indicated that HIV/AIDS knowledge was higher in
those who were at higher behavioural risk, although the direction of causal
ity in these cross-sectional data cannot be inferred. African-Americans wer
e at slightly higher risk. Compared with previous clinic samples, this samp
le was older and a higher number (one-third) slept the last night outside.
Eighty per cent had had an HIV test. Condom use was low with both males and
females most commonly not reporting using condoms although more than half
had had sexual contact in the past month. Multivariate analysis indicated t
hat ethnicity and HIV/AIDS knowledge were independent predictors of risk be
haviour. Lifetime risks included one-third who had injected drugs (and shar
ed needles), and nearly 10% had had sex with someone they knew to be HIV se
ropositive. Lack of future time perspective rather than level of knowledge
may be a barrier to reducing HIV risks, and the data are discussed in terms
of policy implications and homelessness.