Clinical Study

Sexually Transmitted Infections in Women Participating in a Biomedical Intervention Trial in Durban: Prevalence, Coinfections, and Risk Factors

Table 2

The association between demographic factors and prevalence of sexually transmitted infections.

CharacteristicsOverall STI− value
(%) (%) (%)

Age <0.001
 <23 years660 (30)477 (28)183 (37)
 23–27 years484 (22)376 (22)108 (22)
 28–32 years564 (25)454 (26)110 (22)
 38+ years528 (24)437 (25) 91 (19)
Education 0.584
 At least high school
 No 1550 (69)1204 (69)346 (70)
 Yes686 (30)540 (31)146 (30)
Regular income/employment0.212
 No 1842 (82)1446 (83)396 (80)
 Yes394 (18)298 (17)96 (20)
Sexual behaviour 0.219
 <3 sexual acts reported in the last 2 weeks 1282 (57) 988 (56) 294 (60)
 3+ sexual acts reported in the last 2 weeks954 (43)756 (43)198 (40)
Condom use at last sex act0.221
 No896 (40) 687 (39)209 (42)
 Yes 1339 (60)1056 (60)283 (57)
Hormonal contraceptiona0.75
 No845 (37)662 (37)183 (37)
 Yes1391 (62)1082 (62)309 (62)

At least one positive test for Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, and T. pallidum at enrolment.
includes injectable and oral contraception.