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Table 1 HIV and STI test results of MSM clients, 2011-2012

From: Risk factors for HIV and STI diagnosis in a community-based HIV/STI testing and counselling site for men having sex with men (MSM) in a large German city in 2011–2012

  Number of tests (any test N = 1476)# Number (%) testing positive Number tested at least twice in 2011-2012 Number (%) seroconverting/newly infected
HIV 1413 41 (2.9) 486* 16 (3.3)
Syphilis (active) 1380 27 (2.0) 271° 3 (1.1)
Syphilis (antibodies) 1380 131 (9.5) 271 n.a.
Gonorrhoea rectal 642 23 (3.6) 154° 8 (5.2)
Gonorrhoea pharyngeal 882 48 (5.4) 212° 16 (7.5)
Chlamydia rectal 642 56 (8.7) 154° 14 (9.1)
Chlamydia pharyngeal 882 15 (1.7) 212° 5 (2.4)
Any rectal STI 642 71 (11.1)   
Any rectal STI or active syphilis 1403 95 (6.8)   
  1. # discrepancies of numbers compared with Figure 1 due to missing age data for 40 clients.
  2. n.a. =not applicable, because treponemal antibodies often persist after treatment. Among the clients reporting testing at least twice 28 (10.3%) had detectable treponemal antibodies. Since the result of the previous tests is unknown, new or re-infection rates could not be determined.
  3. *= 295 had been tested at Hein&Fiete, 191 had been tested elsewhere first and the second time at Hein&Fiete.
  4. °= clients had been tested at Hein&Fiete at least twice in 2011–2012, however it is unknown whether they had been tested twice for this STI or at this location.