Table 5

Association between sexual practice and gonorrhoea, Chlamydia, syphilis and HIV positivity among men who have sex with men only (MSMO) and men who have sex with men and women (MSMW) attending a sexual health centre in Melbourne, 2011–2018

HIV/STIOR (95% CI)P valueaOR (95% CI)*P value
Gonorrhoea (any anatomical site)†
 MSMO1.96 (1.45 to 2.67)<0.0011.58 (1.15 to 2.18)0.005
 MSMW-M1.91 (1.31 to 2.78)0.0011.41 (0.94 to 2.12)0.093
 MSMW-W1ref1ref
Chlamydia (any anatomical site)†
 MSMO1.87 (1.39 to 2.50)<0.0011.47 (1.09 to 1.99)0.013
 MSMW-M1.63 (1.12 to 2.38)0.0101.19 (0.80 to 1.77)0.394
 MSMW-W1ref1ref
Syphilis
 MSMO2.18 (1.45 to 3.27)<0.0012.11 (1.36 to 3.27)0.001
 MSMW-M1.48 (0.88 to 2.49)0.1421.08 (0.61 to 1.93)0.791
 MSMW-W1ref1ref
HIV (new diagnosis)‡
 MSMO6.01 (1.92 to 18.80)0.0025.49 (1.74 to 17.30)0.004
 MSMW-M2.38 (0.61 to 9.24)0.2101.81 (0.43 to 7.63)0.422
 MSMW-W1ref1ref
HIV (previous diagnosis)
 MSMO21.22 (2.98 to 151.30)0.00217.91 (2.50 to 128.43)0.004
 MSMW-M6.30 (0.76 to 52.45)0.0894.10 (0.47 to 35.42)0.200
 MSMW-W1ref1ref
  • *Adjusted by age, country of birth, sex overseas, injected drug use in the past 12 months, regular partner, number of male sexual partners in the past 12 months, condom use with casual male partners in the past 12 months and year of visit.

  • †Any anatomical site for gonorrhoea includes urethral, anorectal and oropharyngeal, while any site for chlamydia includes urethral and anorectal.

  • ‡Only including HIV cases diagnosed on the day of the first visit.

  • aOR, adjusted odds ratio; CI, confidence interval ; MSMO, men who have sex with men only; MSMW-M, men who have sex with men and women and had more male than female sexual partner in the past 12 months; MSMW-W, men who have sex with men and women and had more female than male sexual partner in the past 12 months; OR, odds ratio; STI, sexually transmitted infection.