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Table 1 Demographic characteristics and sexual behaviour of 111 heterosexual patients with confirmed Chlamydia trachomatis infection and IgA anti-MOMP serology > 2.0 COI, STI clinic of the Public Health Service Amsterdam, the Netherlands, 2009

From: No evidence for LGV transmission among heterosexuals in Amsterdam, the Netherlands

  Men n (%) Women n (%) Total n (%)
Variable N = 58 N = 53 N = 111
Demographics    
Age categories    
   15-19 years 1 (1.7) 14 (26.4) 15 (13.5)
   20-24 years 15 (25.9) 25 (47.2) 40 (36.0)
   25-29 years 21 (36.2) 10 (18.9) 31 (27.9)
   30 or more 21 (36.2) 4 (7.5) 25 (22.5)
Nationality    
   Dutch 49 (84.5) 49 (92.5) 98 (88.3)
   Other 9 (15.5) 4 (7.5) 13 (11.7)
STI    
Location of Ct infection(s)*    
   Urogenital 58 (100) 53 (100) 111 (100)
   Rectal 0 9 (17.0) 9 (8.1)
   Ocular 2 (3.4) 2 (3.8) 4 (3.6)
Bacterial coinfections    
   Gonorrhoea 4 (6.9) 5 (9.4) 9 (8.1)
   Infectious syphilis 1 (1.7) 0 1 (0.9)
STI history and symptoms    
History of syphilis, Ct, or gonorrhoea    
   No 58 (100.0) 46 (86.8) 104 (93.7)
   Yes 0 7 (13.2) 7 (6.6)
STI symptoms at current visit    
   No 25 (43.1) 37 (69.8) 62 (55.9)
   Yes 33 (56.9) 16 (30.2) 49 (44.1)
Notified by sexual partner with confirmed STI    
   No 41 (70.7) 36 (68.0) 77 (69.4)
   Yes 17 (29.3) 17 (32.1) 34 (30.6)
Sexual behaviour    
Number of sexual partners in preceding 6 mo.    
   0   1 (1.9)  
   1   17 (32.1)  
   2   23 (43.4)  
   3 or more   12 (22.6)  
Anal sex in last 6 mo.‡    
   None 49 (89.1) 43 (82.7) 92 (86.0)
   Always with a condom 0 1 (1.9) 1 (0.9)
   Not always with a condom 6 (10.9) 8 (15.4) 14 (13.1)
  1. Abbreviations: STI sexually transmitted infections, anti-MOMP anti-major outer membrane protein, Ct  Chlamydia trachomatis, mo. months, COI  cut-off index. * = as some patients had multiple CT -infections at more than one anatomical site, totals exceed 100% † = the clinic protocol for heterosexual men does not include this question ‡ = data missing for 3 men and 1 woman.