Research Article
Syphilis among Female Sex Workers: Results of Point-of-Care Screening during a Cross-Sectional Behavioral Survey in Burkina Faso, West Africa
Table 4
Factors associated with syphilis serological markers among female sex workers in Burkina Faso.
| Characteristics | FSW (n) | Syphilis serological markers (%) | Bivariate analysis | Multivariate analysis | OR | 95% CI | | aOR | 95% CI | |
| Age (years) | | | | | | | | | 18-19 | 118 | 3.4 | 1 | — | — | — | — | — | 20–24 | 364 | 3.8 | 1.14 | 0.36–3.53 | 0.820 | — | — | — | 25–29 | 245 | 5.3 | 1.59 | 0.50–5.00 | 0.422 | — | — | — | ≥30 | 318 | 8.8 | 2.75 | 0.94–8.02 | 0.064 | 1.18 | 0.30–4.63 | 0.805 | All ages | 1045 | 5.6 | | | | | | | Education level | | | | | | | | | None | 324 | 9.3 | 1 | — | — | — | — | — | Primary | 377 | 5.6 | 0.57 | 0.32–1.03 | 0.063 | 0.62 | 0.33–1.13 | 0.085 | Secondary | 340 | 2.1 | 0.20 | 0.09–0.47 | <0.001 | 0.23 | 0.09–0. 60 | 0.002 | Occupation other than sex work | | | | | | | | | Student | 49 | 8.2 | 1 | — | — | — | — | — | Worker | 390 | 4.1 | 0.48 | 0.15–1.50 | 0.208 | — | — | — | Unemployed | 604 | 5.7 | 0.77 | 0.26–2.27 | 0.644 | — | — | — | Marital status | | | | | | | | | Single | 625 | 4.5 | 1 | — | — | — | — | — | Married or cohabitating | 102 | 6.9 | 1.57 | 0.66–3.69 | 0.301 | — | — | — | Divorced/separated/widowed | 318 | 7.5 | 1.74 | 0.99–3.05 | 0.054 | 0.83 | 0.40–1.72 | 0.631 | Number of biological children | | | | | | | | | 0 | 277 | 2.17 | 1 | | | | | | 1 | 397 | 5.79 | 2.78 | 1.11–6.91 | 0.028 | 1.69 | 0.56–5.14 | 0.351 | 2+ | 371 | 8.09 | 3.97 | 1.63–9.68 | 0.002 | 1.26 | 0.38–4.15 | 0.706 | Duration in sex work | | | | | | | | | <1 year | 237 | 2.5 | 1 | — | — | — | — | — | 1–5 years | 506 | 5.3 | 2.17 | 0.88–5.32 | 0.091 | 1.04 | 0.37–2.92 | 0.933 | 6+ years | 286 | 9.1 | 3.85 | 1.56–9.51 | 0.004 | 1.12 | 0.38–3.31 | 0.833 | Number of clients per week | | | | | | | | | 1–14 | 451 | 3.5 | 1 | — | — | — | — | — | 15–21 | 241 | 4.6 | 1.30 | 0.59–2.84 | 0.512 | | | | 22–28 | 71 | 9.9 | 2.97 | 1.18–7.50 | 0.021 | 1.97 | 0.73–5.26 | 0.177 | 29–80 | 219 | 11.0 | 3.34 | 1.73–6.44 | <0.001 | 2.62 | 1.28–5.35 | 0.008 | Has been pregnant | | | | | | | | | No | 188 | 1.6 | 1 | — | — | — | — | — | Yes | 856 | 6.5 | 4.31 | 1.33–3.94 | 0.014 | 1.68 | 0.38–7.38 | 0.493 | Past 12 months consistent condom use | | | | | | | | | No | 403 | 6.9 | 1 | — | — | — | — | — | Yes | 618 | 5.0 | 0.71 | 0.41–1.19 | 0.190 | 0.65 | 0.35–1.19 | 0.163 | Past 12 months STD symptoms | | | | | | | | | No | 573 | 5.2 | 1 | | | | | | Yes | 463 | 6.3 | 1.21 | 0.71–2.04 | 0.710 | — | — | — | Past 12 months STD screening | | | | | | | | | No | 829 | 6.1 | 1 | — | — | — | — | — | Yes | 213 | 3.8 | 1.20 | 0.71–2.04 | 0.478 | — | — | — | HIV status | | | | | | | | | Negative | 877 | 5.4 | 1 | | | | | | Positive | 168 | 7.1 | 1.35 | 0.70–2.61 | 0.360 | — | — | — | Study site | | | | | | | | | Ouagadougou | 349 | 4.3 | 1 | | | | | | Bobo-Dioulasso | 350 | 11.4 | 2.87 | 1.56–5.30 | 0.001 | 1.74 | 0.85–3.56 | 0.130 | Koudougou | 115 | 1.7 | 0.39 | 0.09–1.74 | 0.221 | 0.40 | 0.09–1.88 | 0.248 | Ouahigouya | 102 | 0.0 | — | | | — | | | Tenkodogo | 129 | 1.5 | 0.35 | 0.08–1.55 | 0.168 | 0.19 | 0.02–1.53 | 0.120 | Country of origin | | | | | | | | | Burkina Faso | 709 | 5.9 | 1 | — | — | — | — | — | Other countries | 336 | 5.1 | 0.82 | 0.47–1.46 | 0.515 | — | — | — |
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STD = sexually transmitted disease; OR = odds ratio; aOR = adjusted odds ratio; CI = confidence interval.
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