Trends and differences in sexual practices and sexually transmitted infections in men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): a repeated cross-sectional study in Melbourne, Australia

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  • dc.contributor.author Martin-Sánchez, Mario
  • dc.contributor.author Case, Richard
  • dc.contributor.author Fairley, Christopher
  • dc.contributor.author Hocking, Jane S.
  • dc.contributor.author Bradshaw, Catriona
  • dc.contributor.author Ong, Jason
  • dc.contributor.author Chen, Marcus Y.
  • dc.contributor.author Chow, Eric P.F.
  • dc.date.accessioned 2021-06-01T06:57:58Z
  • dc.date.available 2021-06-01T06:57:58Z
  • dc.date.issued 2020
  • dc.description.abstract Objectives: In the 2010s, there has been an increase in sexually transmitted infections (STI) in men who have sex with men (MSM) in Australia, and since 2015 also in urban heterosexuals. Men who have sex with both men and women (MSMW) have characteristics that may differ from both men who have sex with men only (MSMO) and heterosexual men. We aimed to compare the sexual practices and the trends in HIV/STI positivity between MSMO and MSMW. Design: Repeated cross-sectional study. Setting: A sexual health centre in Melbourne, Australia. Participants: MSM aged 18 years and above who attended the Melbourne Sexual Health Centre for the first time between 2011 and 2018. This includes 12 795 MSMO and 1979 MSMW. Primary outcome measures: Demographic characterics, sexual practices and HIV/STI positivity. Results: Compared with MSMW, MSMO were more likely to practice anal sex and to have condomless receptive anal sex with casual male partners, and less likely to have a current regular relationship. Over the 8-year period, there was an increase in condomless receptive anal sex with casual male partners for both groups (MSMO: from 46.2% to 63.3%, ptrend <0.001; MSMW: from 41.3% to 57.9%, ptrend=0.011). Syphilis positivity increased in MSMO (from 5.5% to 7.9%, ptrend=0.012) and MSMW (from 0.9% to 6.4%, ptrend=0.004) and HIV remained stable. Gonorrhoea increased among MSMO from 2011 to 2014 (from 6.7% to 9.6%, ptrend=0.002), and remained stable from 2015 to 2018. MSMO had higher odds of testing positive for gonorrhoea (adjusted OR (aOR) 1.36, 95% CI 1.13 to 1.64), chlamydia (aOR 1.39, 95% CI 1.16 to 1.67), syphilis (aOR 1.74, 95% CI 1.37 to 2.22) and HIV (aOR 4.60, 95% CI 2.43 to 8.70) than MSMW. Conclusions: MSMW have overall lower condomless sex and lower HIV/STI positivity. In the last years, changes in sexual practices in MSM have affected both MSMW and MSMO leading to an increased STI risk.
  • dc.format.mimetype application/pdf
  • dc.identifier.citation Martín-Sánchez M, Case R, Fairley C, Hocking JS, Bradshaw C, Ong J, et al. Trends and differences in sexual practices and sexually transmitted infections in men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): a repeated cross-sectional study in Melbourne, Australia. BMJ Open. 2020 Nov 24; 10(11): e037608. DOI: 10.1136/bmjopen-2020-037608
  • dc.identifier.doi http://dx.doi.org/10.1136/bmjopen-2020-037608
  • dc.identifier.issn 2044-6055
  • dc.identifier.uri http://hdl.handle.net/10230/47702
  • dc.language.iso eng
  • dc.publisher BMJ Publishing Group
  • dc.rights Copyright © Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.
  • dc.rights.accessRights info:eu-repo/semantics/openAccess
  • dc.rights.uri http://creativecommons.org/licenses/by-nc/4.0/
  • dc.subject.keyword HIV & AIDS
  • dc.subject.keyword Epidemiology
  • dc.subject.keyword Public health
  • dc.subject.keyword Sexual medicine
  • dc.title Trends and differences in sexual practices and sexually transmitted infections in men who have sex with men only (MSMO) and men who have sex with men and women (MSMW): a repeated cross-sectional study in Melbourne, Australia
  • dc.type info:eu-repo/semantics/article
  • dc.type.version info:eu-repo/semantics/publishedVersion

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