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

Table 1 HIV and STI test results of MSM clients, 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)

# discrepancies of numbers compared with Figure 1 due to missing age data for 40 clients.
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.
*= 295 had been tested at Hein&Fiete, 191 had been tested elsewhere first and the second time at Hein&Fiete.
°= 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.

ISSN: 1471-2334