Table 4

Summary of results for studies assessing frequency of sex acts before and after testing for HIV

StudyOutcome measureSample sizeBaseline value of outcomeChange after testingFollow-up time (months)p Value
Had sex/was abstinent
Ramjee et al28Had vaginal sex in last week95870.9%7.1% decrease12NR
Kiene et al20Became abstinent*131 (risky participants only)NR7.6% increase3NR
Ndase et al23No sex in last month2284 (males)5.6%9.1% increase24NR
No sex in last month1097 (females)7.9%14.6% increase
Number of sex acts
Kiene et al20Mean number of sex acts in last 3 months213 (all participants)18.1Relative increase by 9.4%3NR
Van Damme et al30Number of vaginal sex acts in past week21203.7Relative decrease of 15.7%12<0.001
Mugwanya et al25Average number of sex acts per month with HIV+ partner30244.14Relative decrease of 12.8%240.4 (over time)
Average of number of sex acts per month outside primary relationship0.67Relative increase of 25.4%0.006 (over time)
  • Baseline percentages are calculated as the percentage of people reporting a given outcome. Changes after testing represent absolute changes unless explicitly reported as relative.

  • *No timescale specified for abstinence.

  • NR, not reported.