Nested Event-Level Case–Control Study of Drug Use and Sexual Outcomes in Multipartner Encounters Reported by Men Who Have Sex with Men

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• 作者：G. J. Melendez-Torres ; Ford Hickson ; David Reid ; Peter Weatherburn…
• 关键词：Sexual risk behaviour ; Observational epidemiology ; Multipartner encounters ; Drug use ; Men who have sex with men
• 刊名：AIDS and Behavior
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：20
• 期：3
• 页码：646-654
• 全文大小：377 KB
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• 作者单位：G. J. Melendez-Torres (1)
  Ford Hickson (2)
  David Reid (2)
  Peter Weatherburn (2)
  Chris Bonell (3)
  
  1. Department of Social Policy and Intervention, University of Oxford, Barnett House, 32 Wellington Square, Oxford, OX1 2ER, UK
  2. Sigma Research, London School of Hygiene and Tropical Medicine, University of London, London, UK
  3. Social Science Research Unit, UCL Institute of Education, University College London, London, UK
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Public Health
  Health Psychology
  Infectious Diseases
  
• 出版者：Springer Netherlands
• ISSN：1573-3254

文摘

Previous event-level analyses have often, but not always, found significant associations between drug use and sexual risk behaviour in men who have sex with men (MSM), but these analyses have rarely considered either multipartner encounters specifically, or other sexual outcomes such as pleasure and control. Using data from an internet-based longitudinal survey of MSM, we tested the association between drug use by respondent and by partners and unprotected anal intercourse (UAI), pleasure and control over sexual activity. Overall respondent substance use was significantly associated with increased odds of UAI, though not with pleasure or control. Respondent use of crystal methamphetamine was significantly associated with both increased odds of UAI and decreased odds of control over sexual activity. This analysis agrees with previous studies of dyadic encounters, and specifically suggests that the association between crystal methamphetamine and sexual risk behaviour may be mediated by loss of control.