Table 2

 Time trends in sexual behaviour and STI/HIV prevalence among male clients of female sex workers: Cotonou, 1998–2005

Cotonou199820022005p value
NA, data not available for that survey round. NC, variables not directly comparable (significance testing not carried out).
*Total sample size for each round: denominators for specific variables vary due to incomplete data, as in some cases men left before the interview was finished, or chose not to answer specific questions. Denominators for biological assays are higher than those for interview, since some men gave a a urine sample before having sex with a FSW, and then left after having had sex, having decided not to give an interview; †currently; §had sex with in last year; **had sex with in last 3 months; p value: chi square test for trend; †analysis of variance; ‡chi square test.
Commercial sex partnersn = 330*n = 602*n = 298*
    Frequency visit FSW/year: mean (median)32 (24)11.1 (5)19.8 (12)<0.001†
    Condom used last sex act with FSW55.8%68.1%94.6%<0.001
    Consistent condom use with FSW39.0%55.1%86.2%<0.001
Non-commercial sex partners
    Is married or has a regular girlfriend79.9%†83.3%§54.8%**NC
    Consistent condom use regular partner13.1%16.8%11.4%0.71
    Has casual (non-FSW) sex partners34.7%†68.2%§16.6%**NC
    Condom used last sex with casual sex partnerNA47.3%85.7%<0.001‡
    Consistent condom use with casual sex partners28.6%24.5%65.3%<0.001
HIV/STI prevalencen = 404*n = 630*n = 313*
    HIV8.4%8.8%6.9%0.59
    Neisseria gonorrhoeae5.4%2.4%1.6%<0.01
    Chlamydia trachomatis2.7%4.0%3.2%0.59