A single-session, online, multimedia intervention effectively
reduced risky sexual behaviors among young men who have sex with men, a
group at high risk for HIV/AIDS and other sexually transmitted
infections. Such low-cost programs may help reverse the steady rise in
HIV diagnoses among this population. The study was published online
ahead of print on June 5, 2009, in the journal, AIDS and Behavior.
Background
Based on the Information-Motivational-Behavioral Skills (IMB) model for reducing HIV risk,
Kelly M. Carpenter, Ph.D., of Talaria, Inc., and colleagues developed a multimedia, online intervention that aimed to:
- Increase knowledge of risk factors
- Provide skills training for safer sex behaviors
- Increase motivation for behavior change.
The
researchers recruited 112 men who have sex with men, ages 18–39.
Participants were HIV negative or did not know their status and had
engaged in unprotected sex within the preceding three months. All
participants completed a 25-minute baseline assessment and then were
randomly assigned to the experimental intervention or a control group
program. Both the intervention and control program required 1.5–2 hours
to complete, though participants had up to a week to finish.
Participants were asked to return to the study Web site three months
later to complete a 20-minute follow-up questionnaire.
The
intervention presented a variety of interactive exercises, multimedia
clips, quizzes, and other materials that provided information about
safer sex practices and tested participants’ knowledge of HIV risk
factors. Those in the control group completed an online stress
reduction program that described the effects of stress on the body and
health reasons for reducing stress, in addition to leading participants
in relaxation exercises, such as deep breathing and guided imagery. The
control program did not include any sexual risk reduction information.
Results of the Study
Participants
in both groups reported fewer risky behaviors compared with their
baseline assessments. Those who received the intervention reported
fewer instances of unprotected sex with partners who were HIV+ or of
unknown status.
However, the researchers noted that few
minorities participated in the study, a group that may be at highest
risk for HIV infection and most in need of preventive interventions.
Also, since the entire study was conducted online, the effects of only
partially completing the intervention or completing only the baseline
assessment are unknown.
Significance
The findings show
that Internet-based interventions can affect HIV risk behavior.
According to the researchers, delivering such programs online may
eventually make it possible to provide effective interventions to
underserved populations, such as rural or minority communities, at a
lower cost than in-person interventions. Internet-based delivery also
allows high-risk individuals to access the intervention privately, at
their convenience, and possibly at important “teaching opportunities,”
such as when they are actively seeking new partners online. Another
possible advantage over face-to-face intervention programs is the
individual’s ability to leave an online intervention and return when he
feels more motivated, suggested the researchers.
Regarding the
sexual risk reduction seen in the control group, the researchers
suggested that just completing the baseline assessment may have drawn
participants’ attention to their own unsafe behaviors and provided
enough motivation for them to change.
What’s Next
More
research is needed to determine the best length for online
interventions. Longer, more detailed interventions may have greater
effects on behavior, but more people may are likely to start and finish
shorter ones. Future studies should also focus on enrolling more
minority participants, include measures of safer sex skills other than
condom use, (for example, talking to one’s partner(s) about HIV
status), and gather more information on the effectiveness of individual
intervention components.
Reference
Carpenter KM, Stoner SA, Mikko AN, Dhanak LP, Parsons JT. Efficacy of a Web-Based Intervention to Reduce Sexual Risk in Men Who Have Sex with Men. AIDS Behav. 2009 Jun 5. [Epub ahead of print]
PubMed PMID: 19499321
Source: National Institute of Mental Health
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