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. 2012 May 31;7(5):e38143. doi: 10.1371/journal.pone.0038143

Table 2. Bivariate associations with HIV status.

Sample estimates Population estimates
HIV− (%) HIV+ (%) Odds ratio 95% CI p
Age (years)
18–24 137 (95.8) 6 (4.2) Ref - -
25+ 117 (77.5) 34 (22.5) 5.69 2.02–16.02 0.001
Circumcision status
Uncircumcised 131 (87.3) 19 (12.7) Ref - -
Circumcised 123 (85.4) 21 (14.6) 0.84 0.35–2.01 0.690
No. years in school
0–6 64 (90.1) 7 (9.9) Ref - -
7+ 185 (85.3) 32 (14.7) 1.55 0.56–4.34 0.401
Religion
Catholic 105 (85.4) 18 (14.6) Ref - -
Protestant 63 (87.5) 9 (12.5) 1.18 0.37–3.78 0.775
Moslem 36 (80.0) 9 (20.0) 1.06 0.37–3.04 0.912
Other religion 37 (90.2) 4 (9.8) 0.38 0.10–1.47 0.161
None 11 (100) 0 (0) - - -
Occupation
Student 50 (96.2) 2 (3.8) Ref - -
Unemployed 43 (87.8) 6 (12.2) 2.42 0.42–13.99 0.322
Employed 158 (83.2) 32 (16.8) 4.03 0.86–18.87 0.077
Marital status (with women)
Never married 168 (86.6) 26 (13.4) Ref - -
Married 53 (94.6) 3 (5.4) 0.21 0.06–0.80 0.021
Previously married 32 (74.4) 11 (25.6) 2.78 0.88–8.77 0.081
Alcohol consumption past 30 days
None 81 (94.2) 5 (5.8) Ref - -
Less than once a week 22 (91.7) 2 (8.3) 0.71 0.09–5.26 0.734
At least once a week 108 (85.0) 19 (15.0) 1.45 0.48–4.37 0.504
About every day 40 (75.5) 13 (24.5) 4.72 1.24–17.96 0.023
Illict drug consumption
Never 174 (82.9) 36 (17.1) Ref - -
Ever 80 (95.2) 4 (4.8) 0.14 0.04–0.54 0.004
Ever injected drugs
Never 223 (85.1) 39 (14.9) Ref - -
Ever 31 (96.9) 1 (3.1) 0.08 0.01–0.60 0.014
Condom use
Never 67 (88.2) 9 (11.8) Ref - -
Ever 179 (86.1) 29 (13.9) 2.00 0.75–5.32 0.167
Condom use (for sex acts in last 3 months)
>66% 91 (86.7) 14 (13.3) Ref - -
33%–66% 50 (84.8) 9 (15.2) 2.28 0.71–7.36 0.167
<33% 98 (88.3) 13 (11.7) 0.59 0.23–1.53 0.281
Lubricant use
Ever 190 (84.1) 36 (15.9) Ref - -
Never 55 (96.5) 2 (3.5) 0.12 0.02–0.67 0.015
Ever sex with women
Never 55 (79.7) 14 (20.3) Ref - -
Ever 199 (88.4) 26 (11.6) 0.65 0.26–1.61 0.354
History of blackmail
Never 116 (92.1) 10 (7.9) Ref - -
Ever 74 (84.1) 14 (15.9) 1.76 0.55–5.61 0.339
History of homophobic abuse
Never 156 (93.4) 11 (6.6) Ref - -
Ever 88 (76.5) 27 (23.5) 6.41 2.52–16.35 <0.001
History of rape
Never 172 (86.4) 27 (13.6) Ref - -
Ever 73 (86.9) 11 (13.1) 0.85 0.34–2.11 0.722
Type of anal sex (last 3 months)
Mostly insertive 110 (90.9) 11 (9.1) Ref - -
Equally insertive & receptive 58 (82.9) 12 (17.1) 1.17 0.35–3.89 0.797
Mostly receptive 63 (82.9) 13 (17.1) 1.64 0.49–5.44 0.419
Selling sex
Never 133 (85.8) 22 (14.2) Ref - -
Ever 113 (87.6) 16 (12.4) 1.42 0.56–3.61 0.463
Buying sex
Never 123 (86.6) 19 (13.4) Ref - -
Ever 110 (89.4) 13 (10.6) 0.91 0.38–2.21 0.842
No. sex partners in last 6 months
< = 10 partners 109 (81.9) 24 (18.1) Ref - -
11–24 partners 51 (89.5) 6 (10.5) 1.01 0.25–4.12 0.986
> = 25 partners 80 (91.9) 7 (8.1) 0.60 0.21–1.70 0.336
No. life time sex partners
< = 10 partners 63 (84.0) 12 (16.0) Ref - -
11–24 partners 60 (89.5) 7 (10.5) 0.68 0.21–2.17 0.512
> = 25 partners 104 (86.7) 16 (13.3) 1.26 0.42–3.73 0.681
STD symptoms (last 12 months)
No 118 (91.5) 11 (8.5) Ref - -
Yes 117 (81.8) 26 (18.2) 3.06 1.19–7.86 0.02
Treponema pallidum (syphilis)
Negative 233 (87.6) 33 (12.4) Ref - -
Positive 21 (75.0) 7 (25.0) 2.56 0.79–8.25 0.115
Chlamydia trachomatis
Negative 245 (86.6) 38 (13.4) Ref - -
Positive 3 (60.0) 2 (40.0) 3.07 0.45–20.80 0.25
Neisseria gonorrhoea
Negative 241 (86.4) 38 (13.6) Ref - -
Positive 7 (77.8) 2 (22.2) 1.77 0.30–10.32 0.527
HIV testing history
Never 138 (88.5) 18 (11.5) Ref - -
Ever 108 (84.4) 20 (15.6) 1.30 0.50–3.34 0.588
No. sex partners in the last 6 months
< = 10 partners 109 (81.9) 24 (18.1) Ref - -
11–24 partners 51 (89.5) 6 (10.5) 1.01 0.25–4.12 0.986
> = 25 partners 80 (91.9) 7 (8.1) 0.60 0.21–1.70 0.336
Sexual orientation
Gay/homosexual 138 (83.6) 27 (16.4) Ref - -
Bisexual 102 (90.3) 11 (9.7) 0.56 0.23–1.35 0.194
Heterosexual 11 (84.6) 2 (15.4) 2.98 0.44–20.2 0.263
Sexual attraction
Mostly/only to men 173 (83.6) 34 (16.4) Ref - -
Equally to men and women 36 (94.7) 2 (5.3) 0.26 0.05–1.30 0.101
Mostly/only to women 44 (93.6) 3 (6.4) 0.30 0.08–1.15 0.080