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Table 2 Multivariate regression analyses for any STI and per STI in consultations in young MSM (<25 years) visiting STI clinics, the Netherlands, 2006-2012

From: Increasing sexually transmitted infection rates in young men having sex with men in the Netherlands, 2006–2012

  Any STI OR (95% CI) Chlamydia OR (95% CI) Gonorrhoea OR (95% CI) Infectious syphilis OR (95% CI) HIV OR (95% CI)
Year of consult NS NT 1.1 (1.0-1.1) NS NT
Age, years      
15-19 NS NT NS NS 1.0
20-24      1.8 (1.1-2.7)
Sexual behaviour     
Sex with both men and women 1.0 NT 1.0 NS NS
Sex with men only 1.3 (1.2-1.5)   1.6 (1.4-1.9)   
Ethnicity      
Dutch 1.0 1.0 1.0 1.0 1.0
Surinam/Antilles 1.9 (1.6-2.2) 1.5 (1.2-1.9) 1.6 (1.3-2.0) 2.5 (1.6-3.7) 2.8 (1.8-4.3)
Turkey/Morocco 1.2 (0.9-1.6) 0.9 (0.6-1.3) 1.2 (0.8-1.7) 1.3 (0.6-2.9) 1.9 (0.9-4.0)
Eastern Europe 1.5 (1.2-1.9) 1.2 (0.9-1.7) 1.0 (0.8-1.5) 2.7 (1.7-4.5) 3.1 (1.9-5.1)
SS Africa 1.5 (1.1-2.2) 1.3 (0.8-2.1) 1.3 (0.8-2.2) 2.0 (0.7-5.4) 5.1 (2.5-10.4)
Latin America 1.9 (1.5-2.4) 1.3 (0.9-1.8) 1.8 (1.3-2.4) 3.1 (1.8-5.4) 4.5 (2.7-7.5)
Asia 1.1 (0.9-1.3) 0.9 (0.7-1.2) 1.0 (0.8-1.5) 1.5 (0.8-2.9) 0.9 (0.4-2.1)
Other 1.3 (1.1-1.5) 0.9 (0.8-1.2) 1.2 (1.0-1.5) 1.5 (1.0-2.4) 2.1 (1.4-3.3)
Previous HIV test     
No NS NS NS 1.0 1.0
Yes, negative     1.0 (0.8-1.3) 0.8 (0.6-1.0)
Unknown     2.8 (1.5-5.4) 2.6 (1.4-2.8)
Previous STI      
No 1.0 1.0 1.0 1.0 1.0
Yes 1.8 (1.6-2.0) 1.5 (1.3-1.7) 1.8 (1.5-2.1) 1.9 (1.4-2.6) 2.0 (1.4-2.8)
Unknown 1.0 (0.9-1.2) 1.0 (0.9-1.3) 0.9 (0.7-1.1) 0.5 (0.3-0.8) 0.8 (0.5-1.3)
CSW      
No 1.0 1.0 1.0 1.0 NS
Yes, in <6 months 1.5 (1.2-1.9) 1.4 (1.1-1.8) 1.5 (1.1-2.0) 2.7 (1.8-4.2)  
Unknown 0.4 (0.2-0.7) 0.5 (0.2-0.9) 0.6 (0.3-1.2) -  
Client of CSW      
No NS NS NT NT NT
Yes, in <6 months      
Unknown      
No of partners in < 6 months     
0-1 1.0 1.0 1.0 NS 1.0
2-10 1.4 (1.3-1.6) 1.3 (1.1-1.5) 1.6 (1.3-1.9)   1.1 (0.7-1.7)
>10 2.3 (1.9-2.8) 2.0 (1.5-2.5) 2.5 (2.0-3.2)   3.7 (2.3-6.0)
Unknown 1.4 (1.2-1.7) 1.2 (1.0-1.5) 1.9 (1.5-2.3)   1.2 (0.7-2.0)
Notified      
No 1.0 1.0 1.0 1.0 1.0
Yes 2.9 (2.6-3.2) 2.4 (2.1-2.7) 2.9 (2.5-3.3) 2.3 (1.7-3.1) 1.9 (1.4-2.6)
Unknown 1.1 (0.9-1.3) 1.1 (0.9-1.3) 1.3 (1.0-1.6) 2.1 (1.5-3.2) 1.3 (0.8-2.1)
  1. NS: Not significant. NT: Not tested in multivariate model (p >0.20 in univariate model).
  2. In bold: significant (p < 0.01); due to rounding into 1 decimal 1.0 is not always significant.