Skip to main content

Table 1 Characteristics of 577 men who have sex with men, stratified by self-perceived HIV status, Amsterdam, 2008-9

From: Does online dating lead to higher sexual risk behaviour? A cross-sectional study among MSM in Amsterdam, the Netherlands

  Total HIV-negative HIV-positive HIV unaware P c
N(%)a n(%)a n(%)a n(%)a
N 577 351 (60.8 %) 153 (26.5 %) 73 (12.7 %)  
Demographics      
Median age in years (IQR) 37 (30–43) 36 (30–43) 40 (36–46) 32 (28–41) <0.001
Age in years, categorised      <0.001
  < 30 124 (21.5 %) 86 (24.5 %) 13 (8.5 %) 25 (34.3 %)  
 30–34 104 (18.0 %) 68 (19.4 %) 20 (13.1 %) 16 (21.9 %)  
 35–39 120 (20.8 %) 71 (20.2 %) 41 (26.8 %) 8 (11.0 %)  
  ≥ 40 229 (39.7 %) 126 (35.9 %) 79 (51.6 %) 24 (32.9 %)  
Ethnic groupb      0.181
 Dutch 412 (73.8 %) 259 (75.5 %) 104 (70.8 %) 49 (72.1 %)  
 Western, non-Dutch 72 (12.9 %) 44 (12.8 %) 23 (15.7 %) 5 (7.4 %)  
 Non-western 74 (13.3 %) 40 (11.7 %) 20 (13.6 %) 14 (20.6 %)  
Sexual behaviour      
Median no. of male sex partners in preceding 6 months (IQR) 10 (5–20) 8 (5–15) 12 (6–30) 10 (5–20) <0.001
No. of male sex partners in preceding 6 months      
 1–4 119 (20.6 %) 83 (23.7 %) 22 (14.4 %) 14 (19.2 %) <0.001
 5–9 166 (28.8 %) 113 (32.2 %) 31 (20.3 %) 22 (30.1 %)  
 10–24 188 (32.6 %) 112 (31.9 %) 53 (34.6 %) 23 (31.5 %)  
 25–49 64 (11.1 %) 31 (8.8 %) 26 (17.0 %) 7 (9.6 %)  
  ≥ 50 40 (6.9 %) 12 (3.4 %) 21 (13.7 %) 7 (9.6 %)  
  1. Abbreviations: IQR interquartile range
  2. aUnless specified otherwise
  3. bEthnicity was missing for 8 HIV-negative participants, for 6 HIV-positive participants and for 5 HIV unaware participants
  4. cP was calculated using χ2-test for dichotomous and categorical variables and rank sum test for continuous variables