Table 4

Seroadaptive and conventional risk reduction strategies (n, %) among HIV-negative and HIV-positive men*, stratified by STI diagnosis†

HIV-negative MSMHIV-positive MSM
STI diagnosis
No STI diagnosis
STI diagnosis
No STI diagnosis
n%n%p Valuen%n%p Value
Seroadaptive and other harm reduction behaviours0.002 0.044
 No sex1411.24318.5610.71023.8
 No anal sex32.473.023.637.1
 100% condom3225.68235.31323.237.1
 Pure serosorting4233.66829.31017.91126.2
 Condom serosorting108.0187.858.9819.0
 No strategy54.062.61017.949.5
Behaviour categories‡0.005 0.527
 Conventional risk reduction (no UAI)4939.213256.92137.51638.1
 Any seroadaptive behaviour7156.89440.52544.62252.4
  • *HIV serostatus based on self-reported result of most recent HIV test.

  • †Among HIV-negative men, breakdown of STI diagnoses was 54% bacterial, 34% viral, 12% both; among HIV-positive men, breakdown of STI diagnoses was 71% bacterial, 18% viral and 11% both.

  • ‡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.

  • STI, sexually transmitted infection; UAI, unprotected anal intercourse.