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. 2014 Dec 22;9(12):e115465. doi: 10.1371/journal.pone.0115465

Table 4. Significant bivariate and independent associations with HIV serostatus among FSW in Swaziland, 2011.

HIV test OR Adjusted OR1
Variable Categories (n = observed participants total) n % Negative % Positive Pvalue Estimate [95% CI] Estimate [95% CI]
Age in years 20 years or younger 62 54.8 45.2 <0.001 1 1
21–25 100 30.0 70.0 2.83** [1.47,5.47] 2.42* [1.07,5.47]
26–30 84 21.4 78.6 4.45*** [2.16,9.17] 3.62** [1.39,9.43]
31 and older 71 16.9 83.1 5.97*** [2.69,13.25] 4.40* [1.38,14.07]
Numbers of years selling sex Under 2 90 44.4 55.6 <0.001 1 ---
3–5 98 32.7 67.3 1.65 [0.91,2.98] ---
6–10 82 18.3 81.7 3.57*** [1.78,7.18] ---
11 or more 43 16.3 83.7 4.11** [1.66,10.22] ---
Highest level of education Primary or lower 104 20.2 79.8 0.010 1 1
Secondary or higher 213 34.3 65.7 0.49* [0.28,0.85] 0.49* [0.26,0.92]
Marital status Single never married 278 31.3 68.7 0.084 1
Married, cohabitate or widowed 35 17.1 82.9 2.20 [0.88,5.50] ---
Where did you grow up? Urban 154 34.4 65.6 0.016 1
Rural 149 22.8 77.2 1.77* [1.07,2.95]
# of Living Children None 77 42.9 57.1 0.012 1
One 97 28.9 71.1 1.85 [0.98,3.47] ---
Two 81 25.9 74.1 2.14* [1.10,4.19]
Three or more 61 18.0 82.0 3.41** [1.54,7.54]
Always uses condom with new clients Not always 137 24.1 75.9 0.058 1 1
Always 180 33.9 66.1 0.62 [0.38,1.02] 0.50 [0.27,0.94]
Always uses condom regular clients Not always 200 30.0 70.0 0.860 1
Always 117 29.1 70.9 1.05 [0.63,1.73] ---
Always uses condom non- paying partner Not always 247 29.1 70.9 0.713 1
Always 70 31.4 68.6 0.90 [0.51,1.59] ---
Been to Jail or Prison No 224 34.4 65.6 0.005 1
Yes 92 18.5 81.5 2.31** [1.28,4.19] ---
Diagnosed with STI in last 12 mts. No 259 33.2 66.8 0.007 1
Yes 45 13.3 86.7 3.23* [1.32,7.93] ---
Had STI-symptoms in last 12 mts. No 153 38.6 61.4 1 1
Yes 158 21.5 78.5 0.001 2.29** [1.39,3.77] 2.80*** [1.56,5.02]
Tested for HIV in last 12 mts. No 82 40.2 59.8 1
Yes 234 25.6 74.4 0.013 1.95* [1.15,3.32] ---
Diagnosed with HIV No 140 58.6 41.4 1
Yes 173 5.8 94.2 <0.001 23.04*** [11.2,47.42]
Received any HIV prevention info in last 12 mts. No 44 40.9 59.1 0.084 1
Yes 271 28.0 72.0 1.78 [0.92,3.43]
Ever disclosed SW to any family member No 220 30.9 69.1 0.494 1
Yes 96 27.1 72.9 1.20 [0.71,2.05]
Ever disclosed SW to any health care worker No 234 33.3 66.7 0.018 1 1
Yes 82 19.5 80.5 2.06* [1.12,3.80] 2.22* [1.09,4.50]

Note: Exponentiated coefficients; 95% confidence intervals in brackets.

1

Adjusted for age, education, always using condoms with new clients, STI symptoms in the last 12 months, and ever disclosing sex work to any health care worker.

*p<0.05, **p<0.01, ***p<0.001.