Purpose: (1) To determine whether adolescents systematically underesti
mate their relative risk for STDs and HIV; and (2) to determine to wha
t extent anxiety about STDs and HIV, past condom use, number of lifeti
me partners and STD/HIV-related beliefs predict perceived relative ris
k. Methods: Two hundred and thirty-one sexually experienced, racially
diverse, urban high school teenagers (mean age = 15.5 years; 53% male)
were surveyed regarding their STD/HIV-related attitudes, beliefs, and
behaviors. Results: The subjects did not perceive themselves to be at
lower risk compared to their perceptions of the risk of other people
their age for STDs or HIV. Using hierarchical multiple linear regressi
on analysis, perceptions of lower relative risk for STDs and for HIV w
ere predicted by higher levels of anxiety (p < .001) but not by past c
ondom use, number of lifetime partners or STD/HIV-related beliefs (p >
.05). Conclusions: Adolescents' perceptions of risk appear to be rela
ted to anxiety about STDs and HIV and their behaviors may be related t
o peer influences and attitudes toward using condoms.