Substance use continues to constitute social and
health problems, more so among adolescents and
young adults. One consequence is risky sexual
behavior, a major problem in sub-Saharan Africa
already facing the synergistic problems of poverty
and HIV/AIDS. This study of female students aged ≥
18 years in two universities in Nigeria uses a multi-
stage stratified random sampling method, and each
subject that gave consent to the study was
administered with a structured questionnaire by
trained interviewers; 2,408 female students were
studied (1,854 from the University of Ibadan and 554
from the Bayero University, Kano). The mean age of
the respondents was 21.6 (SD = 2.9), and about two-
thirds (65.7%) were aged between 20–24, with 2,204
(91.5%) being single and 4.3% married. In all, 23.4%
of the subjects used one form of substance. Alcoholic
drinks of palm wine, alcoholic wine, and beer were
the most common of substances used (22.7%),
followed by tobacco (2%) and cannabis (1%).
Substance use was significantly associated with
religious affiliation of the students (p < 0.001), as
the prevalence of substance use was least among
Muslim students (11.7%) and highest among those
who professed traditional religion (39.4%). Alcohol
use was also positively associated with sexual
activity (p < 0.001). Among the 547 students who
used alcohol, 147 (26.9%) had sex in the 4 weeks
prior to the survey, while among the 1,861 non-
users, only 8.9% did so. The practice of unprotected
sex was found not to be associated with substance
use: a slightly lower proportion (29.5% vs. 36.6%) of
substance users engaged in unprotected sex in their
last encounter compared to non-users. There is need
to scale up public health education on the dangers of
substance use and its associated sexual risk
behavior.
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