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Table 2 Factors associated with at least one positive bacterial STI test for chlamydia, gonorrhoea and/or syphilis in consultations involving MSW (N = 3,016) at STI clinics — the Netherlands, 2006–2012

From: Young male sex workers are at high risk for sexually transmitted infections, a cross-sectional study from Dutch STI clinics, the Netherlands, 2006–2012

  Diagnoseda (n) Testeda (n) Percent Univariate analysis Multivariate analysisb
RR 95 % CI p value* RR adjc 95 % CI p value*
Age group       <.001    <.001
  ≥ 35 years 119 1 000 11.9 ref    ref   
 25–34 years 220 1 238 17.8 1.49 1.21–1.84 <.001 1.41 12–1.77 0.003
 15–24 years 208 777 26.8 2.25 1.84–2.76 <.001 2.30 1.83–2.88 <.001
Country/Area of origin       0.06    
 The Netherlands 245 1 478 16.6 ref      
 Eastern Europe 129 618 20.9 1.26 1.04–1.52 0.02    
 Other European countries 29 133 21.8 1.32 0.93–1.85 0.12    
 Latin America 75 436 17.2 1.04 0.82–1.31 0.76    
 Sub-Saharan Africa 4 40 10.0 0.60 0.24–1.54 0.29    
 Asia 12 57 21.1 1.27 0.76–2.13 0.36    
 Turkey/Morocco 32 127 25.2 1.52 1.10–2.09 0.01    
 Other or unknown 21 124 16.9 1.02 0.68–1.53 0.92    
Self-defined sexual preference
 Heterosexual 87 839 10.4 ref    ref   
 Homosexual/Bisexual 456 2 162 21.1 2.03 1.64–2.52 <.001 1.62 1.27–2.06 <.001
Intravenous drug user in the past 6 months
 No 524 2 886 18.2 ref      
 Yes 10 62 16.1 0.89 0.50–1.58 0.69    
Previous bacterial STId in the past 2 years
 No 364 2 181 16.7 ref    ref   
 Yes 112 421 26.6 1.59 1.33–1.92 <.001 1.39 1.15–1.68 0.001
HIV test result       <.001    <.001
 Negative test 415 2 611 15.9 ref    ref   
 Positive test 37 65 56.9 3.58 2.85–4.50 <.001 2.71 1.68–2.64 <.001
 Known HIV positive 76 205 37.1 2.33 1.91–2.84 <.001 2.11 2.15–3.43 <.001
  1. *Bold numbers are significant p value <0.05
  2. a509 missing data out of a total of 3,016 consultations in MSW (17 %): 1 for age, 3 for country/area of origin, 15 for self-defined sexual preference, 68 for injecting drug use, 414 for previous bacterial STI, 135 for previous HIV test
  3. bVariables included in the multivariate analysis: age group, self-defined sexual preference, previous bacterial STI and HIV test result
  4. cAdjusted for age group, self-defined sexual preference, previous bacterial STI and HIV test
  5. dChlamydia, gonorrhoea and/or syphilis