Prevalence (n, %) of seroadaptive and conventional risk reduction strategies, overall and stratified by HIV serostatus*, San Francisco, 2011
| Overall | HIV-negative | HIV-positive | |||||
|---|---|---|---|---|---|---|---|
| N=455 | N=357 | N=98 | |||||
| n | % | n | % | n | % | p Value | |
| Seroadaptive and other harm reduction behaviours | <0.001 | ||||||
| No sex | 73 | 16.0 | 57 | 16.0 | 16 | 16.3 | |
| No anal sex | 15 | 3.3 | 10 | 2.8 | 5 | 5.1 | |
| 100% condom | 130 | 28.6 | 114 | 31.9 | 16 | 16.3 | |
| Pure serosorting | 131 | 28.8 | 110 | 30.8 | 21 | 21.4 | |
| Condom serosorting | 41 | 9.0 | 28 | 7.8 | 13 | 13.3 | |
| Seropositioning | 40 | 8.8 | 27 | 7.6 | 13 | 13.3 | |
| No strategy | 25 | 5.5 | 11 | 3.1 | 14 | 14.3 | |
| Behaviour categories† | <0.001 | ||||||
| Conventional risk reduction (no UAI) | 218 | 47.9 | 181 | 50.7 | 37 | 37.8 | |
| Any seroadaptive behaviour | 212 | 46.6 | 165 | 46.2 | 47 | 48.0 | |
*HIV serostatus based on self-reported result of most recent HIV test.
†Behavioural category p value compares the frequency of behaviour categories (ie, conventional risk reduction behaviours vs seroadaptive behaviours vs no strategy) rather than specific strategies.
UAI, unprotected anal intercourse.