County Health Rankings & Roadmaps, A Healthier Nation, County by County

The County Health Rankings models and measures

Our Approach

The County Health Rankings model of population health

What can I do?

Action Center

Explore guides and tools for improving health.

What Works for Health

Explore programs and policies that work!

What can I learn from others?

Reports

Key findings from the last four years of County Health Rankings and other national reports.

County-by-County Blog

Project updates, commentaries, events and news about health across the nation from the County Health Rankings & Roadmaps team.

Computer-based interventions to prevent HIV and other STIs

Computer-based interventions focused on decreasing sexually transmitted infections (STIs) provide participants with information on health issues of interest as well as computer-mediated decision making, behavior change, and emotional support. These interactive programs incorporate contributions from users to produce tailored material and feedback that is personally relevant. Programs may be delivered on personal computers or over the internet.

Expected Beneficial Outcomes (Rated)

  • Increased HIV and STI knowledge

  • Increased self-efficacy

Other Potential Beneficial Outcomes

  • Reduced risky sexual behavior

  • Delayed initiation of sex

  • Increased condom use

Evidence of Effectiveness

There is strong evidence that computer-based interventions increase knowledge about HIV and other sexually transmitted infections (STIs), self-efficacy, and safe-sex intentions among adults and adolescents (, , ). These inventions have also been shown to increase condom use and decrease the number of sexual partners (Noar 2009).

Among adolescents, computer-based interventions may also delay initiation of sex and increase pregnancy prevention knowledge (), however, additional evidence is needed to confirm these effects.

Interventions that are tailored to individual users tend to be most successful (Noar 2009, , ). Provision of individualized feedback, promotion of active learning, anonymity, and repeatability are also frequently components of effective computer-based interventions ().

Computer-based interventions can be easily disseminated and can be relatively inexpensive ().

Impact on Disparities

Likely to increase disparities

Implementation Examples

Positive Choices is an example of a successful computer-based intervention that implements tailoring (CDC-Positive Choice).  

Citations - Evidence

* Journal subscription may be required for access.

Cochrane-Bailey 2010* - Bailey J, Murray E, Rait G, et al. Interactive computer-based interventions for sexual health promotion. Cochrane Database of Systematic Reviews. 2010;(9):CD006483.

Noar 2010* - Noar SM, Pierce LB, Black HG. Can computer-mediated interventions change theoretical mediators of safer sex? A meta-analysis. Human Communication Research. 2010;36(3):261-97.

Noar 2009 - Noar SM, Black HG, Pierce LB. Efficacy of computer technology-based HIV prevention interventions: a meta-analysis. AIDS. 2009;23(1):107-15.

Guse 2012* - Guse K, Levine D, Martins S, et al. Interventions using new digital media to improve adolescent sexual health: A systematic review. Journal of Adolescent Health. 2012;51(6):535–43.

Citations - Implementation Examples

* Journal subscription may be required for access.

CDC-Positive Choice - Centers for Disease Control and Prevention (CDC). Positive choice: Interactive video doctor.

Date Last Updated

Sep 10, 2014