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Table 3 Sexual health responses by ZEST study population

From: The influence of interviewers on survey responses among female sex workers in Zambia

  Univariate   Bivariate regressionb
N % / Median [IQR] ICC c Male
IVR
Female
IVR
p-value
Age at first sex 960 16 [15–18] 1.6% 16.2 16.2 1.00
Ever been pregnant 965 83.8% 2.3% 86.3% 81.1% 0.40
 Number of pregnancies 809 2 [1–3]   2.1 2.2 0.69
 Number of living children 803 1 [1–2]   1.6 1.8 0.59
 Ever had unwanted pregnancy 809 61.7% 12.2% 60.2% 65.4% 0.84
  Of which, trying to avoid pregnancy at the time 497 45.5% 19.5% 43.0% 47.9% 0.89
 Ever ended a pregnancy 809 47.7% 20.6% 44.1% 53.2% 0.76
Currently using family planning 964 75.9% 11.6% 79.3% 75.8% 0.87
Has a primary partner 964 59.8% 2.2% 60.4% 59.3% 0.94
 Partner knows about sex work 572 16.9% 15.0% 27.2% 23.5% 0.89
 Condom use with primary partner 574      0.76
  Never   37.3%   40.2% 33.7%  
  Seldom   10.1%   11.9% 11.4%  
  Sometimes   39.7%   38.7% 43.1%  
  Often   2.8%   2.1% 2.6%  
  Always   10.1%   7.1% 9.2%  
Likelihood HIV-positive a 956 5 [4–6] 8.0% 4.9 5.4 0.55
Likelihood will contract HIV in the next year a 947 6 [5–8] 6.3% 5.9 5.9 1.00
Likelihood woman acquires HIV from single act a 957 8 [5–10] 22.6% 7.6 6.7 0.51
How likely to take actions to reduce risk of HIV 962      0.76
 Very likely   58.7%   57.3% 66.3%  
 Somewhat likely   30.9%   33.6% 27.6%  
 Unlikely   5.8%   5.2% 3.6%  
 Very unlikely   4.6%   3.8% 2.5%  
Estimated proportion of FSW living with HIV a 937 7 [6–9] 5.8% 7.1 7.2 0.86
Estimated proportion of SWC living with HIV a 935 8 [5–9] 4.0% 7.2 7.2 0.99
Knows HIV status of primary partner 574 42.0% 9.3% 40.2% 43.0% 0.92
Ever tested for HIV 958 79.3% 16.3% 84.3% 78.8% 0.75
 Months since most recent HIV test 752 6 [4–12] 6.3% 14.1% 9.8% 0.46
 Received results of most recent HIV test 745 92.3% 14.4% 94.1% 93.4% 0.95
Needed healthcare but unable to access in past 12 m 963 36.8% 12.7% 35.7% 36.1% 0.99
Comfortable telling medical provider about sex work 963 69.1% 16.8% 73.9% 65.9% 0.69
Feel medical provider judges for sex work 961 36.2% 29.3% 24.1% 47.5% 0.38
Ever been tested for STIs 964 49.1% 0.2% 50.0% 48.5% 0.87
 Months since most recent STI test 471 6 [3–12] 7.7% 12.2 9.9 0.69
  1. 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
  2. a10-point scale
  3. bAll 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. c 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