Behavioral interventions can increase condom use, reduce sexually transmitted infections
15-Dec-2011 - PROVIDENCE, R.I. - Behavioral interventions aimed at reducing sexual risk behaviors, such as
unprotected sex, are effective at both promoting condom use and reducing sexually transmitted infections (STIs) long after
the initial intervention, according to a new report in the December 15 issue of the Journal of Acquired Immune
Lead author Lori A. J. Scott-Sheldon, Ph.D., of The Miriam Hospital's Centers for Behavioral and Preventive Medicine,
and colleagues at the University of Connecticut conducted a meta-analysis of 42 studies evaluating the effectiveness of HIV-related
behavioral interventions. The studies included in the meta-analysis assessed behavior changes, including increased condom use,
and biological outcomes, such as a subsequent STI or HIV diagnosis. The studies were conducted worldwide and included a
number of at-risk populations.
Researchers found that behavioral interventions - which included HIV education, motivation and skills-based
training aimed at negotiating safer sex behaviors - were successful at improving condom use and reducing incident STIs,
including HIV, for up to four years. This meta-analysis is believed to be the first to examine the incidence of HIV
in a wide range of at-risk populations.
Scott-Sheldon says that while it may seem intuitive that behavioral changes, such as increased condom use, will
result in fewer STIs, previous studies have been unable to support that assertion.
"The association between behavioral and biological outcomes is complex, since transmission of STIs depends on a number of factors, including
partner type, characteristics, and perceptions of partner safety," she says. "Examining both outcomes, and factors associated with sexual
risk behaviors, should be important in determining the efficacy of behavioral interventions."
The meta-analysis evaluated the findings of 67 behavioral interventions in 42 studies. While most studies were conducted in North America,
17 percent took place in Asia, 14 percent in Africa, 5 percent in Europe and 2 percent in South America. In most cases, participants were
randomized to receive an HIV-related behavioral intervention or a control group. Interventions were provided in both group and
Interventions were found to be more successful at improving condom use when social, cultural and economic barriers were addressed.
Researchers also observed that, contrary to expectations, self-management training targeting risky sexual behavior did not
significantly impact condom use one year after the initial intervention.
They also noted that participants were less likely to acquire STIs following the behavioral intervention if they were
diagnosed with an STI or HIV at the time they entered the study. In addition, interventions were more successful at reducing the
incidence of HIV when they sampled more Latinos. The authors note that, globally, Latinos are disproportionately affected by
HIV and interventions targeting this group are urgently needed to prevent HIV infection in this population.
"HIV infections cost the United States billions of dollars annually," Scott-Sheldon says. "In the absence of an effective
HIV vaccine, safer sexual practices and expanded prevention efforts are required to prevent new infections and reduce the burden of HIV.
Translation and widespread dissemination of effective behavioral interventions within a wide range of population groups should be a
Co-authors include Michael P. Carey, Ph.D., director of The Miriam Hospital's Centers for Behavioral and Preventive Medicine; and Tania B.
Huedo-Medina, Ph.D., Michelle R. Warren and Blair T. Johnson, Ph.D., of the University of Connecticut.
The principal affiliation of Lori A. J. Scott-Sheldon, Ph.D., is The Miriam Hospital (a member hospital of the Lifespan health system in
Rhode Island). Dr. Scott-Sheldon also is an assistant professor of psychiatry & human behavior (research) at The Warren Alpert Medical
School of Brown University.
The Miriam Hospital ( http://www.miriamhospital.org ) is a 247-bed, not-for-profit
teaching hospital affiliated with The Warren Alpert Medical School of Brown University. It offers expertise in cardiology, oncology,
orthopedics, men's health, and minimally invasive surgery and is home to the state's first Joint Commission-certified Stroke Center
and robotic surgery program. The hospital is nationally known for its HIV/AIDS and behavioral and preventive medicine research,
including weight control, physical activity and smoking cessation. The Miriam Hospital has been awarded Magnet Recognition for
Excellence in Nursing Services four times and is a founding member of the Lifespan health system.
Contact: Jessica Collins Grimes