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Original article
Patterns of sexualised recreational drug use and its association with risk behaviours and sexual health outcomes in men who have sex with men in London, UK: a comparison of cross-sectional studies conducted in 2013 and 2016
  1. Tyrone J Curtis1,
  2. Alison J Rodger1,
  3. Fiona Burns1,
  4. Anthony Nardone2,
  5. Andrew Copas1,
  6. Sonali Wayal1
  1. 1Institute for Global Health, University College London, London, UK
  2. 2Epiconcept, Paris, France
  1. Correspondence to Tyrone J Curtis, Institute for Global Health, University College London, London WC1E 6JB, UK; tyrone.curtis{at}ucl.ac.uk

Abstract

Objective London has one of the highest identified prevalence of chemsex (sexualised recreational drug use) among men who have sex with men (MSM) in Europe. We examine MSM’s patterns of chemsex and its association with HIV/STI risk behaviours, STI diagnoses and sexual healthcare-seeking behaviours, including if HIV testing behaviour met UK national guidelines (three monthly if engaging in chemsex).

Methods Cross-sectional survey data from 2013 (n=905) and 2016 (n=739) were collected using anonymous, self-administered questionnaires from MSM recruited in commercial gay venues in London, UK. Descriptive and multivariable analyses, stratified by self-reported HIV status, were conducted. Adjusted prevalence ratios (aPR) with 95% CIs were calculated.

Results Comparing the 2013 and 2016 surveys, chemsex prevalence in the past year remained stable, in both HIV-negative/unknown-status MSM (20.9% in 2013 vs 18.7% in 2016, p=0.301) and HIV-positive MSM (41.6% in 2013 vs 41.7% in 2016, p=0.992). Combined 2013–2016 data showed that compared with other MSM, those reporting chemsex were more likely to report HIV/STI risk behaviours, including condomless anal intercourse with serodifferent HIV-status partners (HIV-negative/unknown-status men: aPR 2.36, 95% CI 1.68 to 3.30; HIV-positive men: aPR 4.19, 95% CI 1.85 to 9.50), and STI diagnoses in the past year (HIV-negative/unknown-status men: aPR 2.10, 95% CI 1.64 to 2.69; HIV-positive men: aPR 2.56, 95% CI 1.57 to 4.20). 68.6% of HIV-negative/unknown-status men reporting chemsex attended sexual health clinics and 47.6% had tested for HIV more than once in the past year.

Conclusions Chemsex in London MSM remained stable but high, particularly among HIV-positive men. Irrespective of HIV status, chemsex was associated with engagement in HIV/STI risk behaviours. Frequency of HIV testing in the past year among HIV-negative/unknown-status men was below national recommendations. Promoting combination prevention strategies, including three monthly HIV/STI testing, access to pre-exposure prophylaxis/antiretroviral treatment and behavioural interventions among MSM reporting chemsex, remains vital to address sexual health inequalities in MSM.

  • substance misuse
  • sexual behaviour
  • gay men
  • sexual health
  • HIV testing
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Footnotes

  • AC and SW are joint senior authors.

  • Handling editor Francesca Ceccherini Silberstein

  • Twitter @sonaliwl

  • Contributors This paper was conceived by TJC, AC and SW. TJC wrote the first draft of the article, with further contributions from SW, AJR, FB, AN and AC. TJC carried out the statistical analysis, with support from AC and SW. All authors interpreted the data, reviewed successive drafts and approved the final version of the article.

  • Funding This study was cofunded by grants from Public Health England (PHE), the London HIV Prevention Programme, the National Institute for Health Research School for Public Health Research (SPHR) and the Medical Research Council (MR/N013867/1).

  • Disclaimer The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR, PHE, MRC or the Department of Health and Social Care.

  • Competing interests None declared.

  • Patient consent for publication Not required.

  • Ethics approval Both years of this survey were approved by the London Harrow Research Ethics Committee (Ref: 00/0158).

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data availability statement No data are available.

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