US National HIV Behavioral
Surveillance system includes interviews of a
sample of persons to assess the prevalence of sexual
behaviors, drug use, and testing history for other
sexually transmitted infections [40]. Data from this
system examine the front end of the HIV/AIDS epidemic
and may guide and assess prevention programs
(see Chapter 29, Analysis and interpretation
of case-based HIV/AIDS surveillance data). Similarly,
Youth Risk Behavior Survey measures the
prevalence of health-risk behaviors among adolescents
through self-administered, school-based surveys.
Reports of sex without condoms and sex associated
with drug and alcohol use are among the
data collected
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