Table 2.
Sex work responses by ZEST study population
| Univariate | Bivariate regression a | |||||
|---|---|---|---|---|---|---|
| N | % / Median [IQR] | ICC b | Male IVR |
Female IVR |
p-value | |
| Age at first sex for money | 949 | 19 [17–21] | 1.6% | 19.8 | 19.0 | 0.38 |
| Condoms available while working | 963 | 1.8% | 0.26 | |||
| Never | 1.8% | 1.2% | 2.1% | |||
| Seldom | 4.6% | 3.2% | 5.3% | |||
| Sometimes | 62.7% | 60.7% | 68.3% | |||
| Often | 8.3% | 9.7% | 7.7% | |||
| Always | 22.6% | 25.1% | 16.6% | |||
| Ask SWC to use a condom | 963 | 0.55 | ||||
| Never | 3.8% | 2.2% | 4.0% | |||
| Seldom | 5.9% | 3.7% | 6.4% | |||
| Sometimes | 54.2% | 53.2% | 62.2% | |||
| Often | 11.7% | 14.5% | 11.0% | |||
| Always | 24.3% | 26.5% | 16.4% | |||
| SWCs ask to use a condom | 965 | 0.49 | ||||
| Never | 15.3% | 16.2% | 7.8% | |||
| Seldom | 18.2% | 24.7% | 15.8% | |||
| Sometimes | 57.7% | 54.7% | 66.7% | |||
| Often | 5.0% | 2.6% | 5.6% | |||
| Always | 3.7% | 1.8% | 4.1% | |||
| SWCs request that not to use a condom | 965 | 0.46 | ||||
| Never | 10.1% | 10.3% | 4.6% | |||
| Seldom | 13.8% | 19.1% | 10.9% | |||
| Sometimes | 51.5% | 55.4% | 54.5% | |||
| Often | 19.5% | 12.7% | 24.1% | |||
| Always | 5.2% | 2.4% | 5.8% | |||
| ZMW price for vaginal sex with condom | 931 | 100 [50–150] | 6.6% | 101 | 99 | 0.95 |
| ZMW price for vaginal sex without condom | 883 | 150 [100–250] | 7.0% | 203 | 177 | 0.58 |
| ZMW price for anal sex with condom | 220 | 150 [70–200] | 16.7% | 146 | 185 | 0.65 |
| ZMW price for anal sex without condom | 213 | 200 [130–300] | 14.8% | 242 | 263 | 0.89 |
| Average nightly # of SWCs: other FSW | 954 | 4 [3–5] | 18.9% | 6.0 | 11.2 | 0.69 |
| Average nightly # of SWCs: respondent | 960 | 4 [3–5] | 10.2% | 4.0 | 5.6 | 0.58 |
| # of nightly SWCs use condom with | 941 | 2 [2–3] | 2.3% | 2.4 | 3.2 | 0.49 |
| # of nightly SWCs do not use condom with | 940 | 1 [0–2] | 1.4 | 2.2 | 0.40 | |
| Unable to use condom when wanted to with SWC in past 12 m |
962 | 75.6% | 17.0% | 74.0% | 82.6% | 0.65 |
| Respondent asks SWC to share HIV status | 961 | 0.38 | ||||
| Never | 32.2% | 24.2% | 42.4% | |||
| Seldom | 14.7% | 15.9% | 17.6% | |||
| Sometimes | 41.6% | 46.4% | 33.8% | |||
| Often | 5.7% | 6.5% | 3.2% | |||
| Always | 5.8% | 7.0% | 3.0% | |||
| SWCs ask respondent to share HIV status | 962 | 0.95 | ||||
| Never | 37.2% | 36.9% | 34.8% | |||
| Seldom | 15.6% | 18.6% | 18.4% | |||
| Sometimes | 40.5% | 39.7% | 41.5% | |||
| Often | 4.4% | 3.2% | 3.5% | |||
| Always | 2.3% | 1.6% | 1.8% | |||
12 m 12 months, FSW female sex worker, ICC Intraclass Correlation Coefficient, IQR inter-quartile range, IVR interviewer, SWC sex work client, ZMW Zambian Kwacha: 1 Kwacha ~US$ 10
a All bivariate regressions included study site fixed effects and interviewer random intercepts. Values for male and female IVR are marginal predicted values based on regression coefficients. b ICC is the proportion of all variance in a model without interviewer gender attributable to variation in interviewer identity; not available for Poisson or ordered logistic models.. P-value is for a χ2 test, adjusted for multiple testing across all results shown in Tables 1, 2, 3 and 4 using the Benjamini-Hochberg method