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P60 Associations between substance use and sexual risk behaviour among women aged 16–44 years: evidence from britain’s third national survey of sexual attitudes and lifestyles (NATSAL-3)
  1. Natalie Edelman1,2,
  2. Philip Prah3,
  3. Jackie Cassell1,
  4. Richard de Visser4,
  5. Catherine Mercer3
  1. 1Brighton and Sussex Medical School, Brighton and Hove, UK
  2. 2University of Brighton, Brighton and Hove, UK
  3. 3University College London, London, UK
  4. 4University of Sussex, Brighton and Hove, UK


Background/introduction Taking account of substance use may be important when developing a sexual risk assessment tool for use with women in community health settings.

Aim(s)/objectives To examine whether different measures of substance use have different associations with key sexual risk behaviours among women in the British general population (rather than women attending sexual health clinics who typically report higher risk behaviour).

Methods We analysed data from 4,911 female participants aged 16–44 in Natsal-3, a national probability sample survey undertaken 2010–2012, using multivariable regression to examine the associations between substance use variables and reporting: multiple (2+) partners in the last year; non-use of condoms with multiple partners in the last year; non-use of condoms at first sex with most recent partner.

Results Reporting multiple partners was associated with current smoking (OR 1.59, 95% CI 1.30–1.93), weekly binge drinking (OR 2.47, 95% CI 1.97–3.10), and drug use ever (OR 1.45, 95% CI 1.20–1.75). Similarly, reporting non-use of condoms with multiple partners was also associated with current smoking (OR 1.39, 95% CI 1.09–1.78), weekly binge drinking (OR 2.47, 95% CI 1.90–3.21) and drug use ever (OR 1.48, 95% CI 1.17–1.88). Non-use of condoms at first sex with most recent partner was only associated with current smoking (OR 1.47 95% CI 1.25–1.73) and weekly binge drinking (OR 1.41 95% CI 1.14–1.73).

Discussion/conclusion Differences were found to exist in how substance use variables are associated with the sexual risk behaviours studied. Different substance use questions may therefore be useful in identifying and distinguishing different sexual risk behaviours profiles in community settings.

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