Table 3

Association of STI with sociodemographic and behavioural characteristics

Lifetime syphilis infection (TPPA+ve)Lifetime HSV-2 infection (HSV-2 +ve)Current infection with N gonorrhoeae/C trachomatis
Variable(n)% +veOR* (95% CI)% +veOR** (95% CI)% +veOR*** (95% CI)
*p Value and OR adjusted for site of recruitment, age, education and workplace; **p value and OR adjusted for site of recruitment, age, marital status and workplace; ***p value and OR adjusted for site of recruitment, age, workplace, and number of casual partners.
Age (years) p=0.01 p=0.0004 p=0.0001
<20(52)26.91.0059.61.0036.51.00
20–24(210)41.92.28 (1.11 to 4.69)88.14.54 (2.04 to 10.13)37.60.93 (0.47 to 1.85)
25–29(222)46.42.76 (1.34 to 5.66)90.16.03 (2.54 to 14.29)26.10.40 (0.19 to 0.81)
30+(116)50.03.41 (1.54 to 7.58)89.75.29 (1.94 to 14.39)20.70.34 (0.14 to 0.86)
Education (17 missing values) p=0.002 p=0.08 p=0.5
primary incomplete(96)58.31.0090.6 1.00 34.0 1.00
primary complete(433)41.60.47 (0.29 to 0.77)84.7 0.55 (0.24 to 5.65) 28.6 1.02 (0.60 to 1.70)
secondary(54)31.50.31 (0.14 to 0.66)92.6 1.47 (0.39 to 5.52) 30.3 1.50 (0.68 to 3.27)
Marital status p=0.5 p=0.02 p=0.6
single(209)37.8 1.00 78.91.0034.41.00
cohabiting/married(127)47.2 0.48 (0.70 to 2.20) 87.41.47 (0.66 to 3.23)22.80.70 (0.37 to 1.36)
widowed/divorced(264)47.7 1.28 (0.83 to 1.96) 92.42.55 (1.30 to 4.98)30.30.88 (0.55 to 1.38)
Workplace p=0.04 p=0.009 p=0.01
Modern bar(289)45.71.0090.31.0033.91.00
Traditional bar(169)52.71.29 (0.70 to 2.37)89.30.52 (0.19 to 1.37)32.51.88 (0.96 to 3.67)
Guesthouse/hotel(113)25.70.57 (0.33 to 0.98)74.30.31 (0.15 to 0.63)14.20.52 (0.27 to 0.99)
Kiosk (minibar)(29)51.71.38 (0.61 to 3.11)82.80.34 (0.09 to 1.14)27.91.21 (0.51 to 2.82)
Number of casual partners p=0.7 p=0.3 p=0.0007
No casual partner past year(255)42.01.0084.31.0023.91.00
⩾ One casual partners past year(205)45.41.19 (0.78 to 1.82)85.81.32 (0.72 to 2.44)30.21.82 (1.14 to 2.92)
Any new partner past month(140)46.41.16 (0.71 to 1.87)92.11.90 (0.83 to 4.32)40.72.63 (1.56 to 4.43)