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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