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Table 1 Prevalence of sexually transmitted diseases among MSM-INI-Fiocruz, Rio de Janeiro, Brazil

From: Chlamydia trachomatis, Neisseria gonorrhoeae and syphilis among men who have sex with men in Brazil

  Gonorrhea Chlamydia Syphilis At least one STD
  Urethral Rectal Urethral Rectal
(N = 273)a (N = 279)a (N = 273)a (N = 279)a (N = 284)a (N = 275)b
N (%) - 7 (2.5) 6 (2.2) 28 (10.0) 28 (9.9) 55 (20.0)
HIV serostatus. N (%)       
Positivec - 3 (1.5) 6 (3.0) 24 (11.9) 22 (10.8) 45 (22.6)
Negatived - 4 (5.2) - 4 (5.2) 6 (7.5) 10 (13.2)
  1. aDifferent denominators are explained by availability of results for each STD evaluated
  2. bParticipants who tested positive for at least one STD, regardless of having missing information for other STD, were included and considered as an event. HIV-infected MSM = 199; HIV-uninfected MSM = 76
  3. cNumber of HIV-infected MSM according to the availability of results for each STD: urethral NG = 197; anorectal NG = 202; urethral CT = 197; anorectal CT = 202; Syphilis = 204; At least one STD = 199
  4. dNumber of HIV-uninfected MSM according to availability of results for each STD: urethral NG = 76; anorectal NG = 77; urethral CT = 76; anorectal CT = 77; Syphilis = 80; At least one STD = 76