P037 Men who have sex with men, who are diagnosed with a sexually transmitted infection, report significantly more chem-sex: a case control study

Background/introduction The sexualised use of recreational drugs (Mephedrone, GBL/GHB, Crystal Meth) is thought to be associated with STI acquisition however there is little data showing a direct relationship. Methods We reviewed 130 cases of MSM with an STI attending our STI service and 130 controls (MSM attending the STI service who did not have an STI) between 5 th May 2015 and 2 nd Nov 2015 (6 months). We collected demographic data, sexual behaviour, drug use and STI diagnoses. Results In the 6-month period there were 5,013 appointments with MSM. Reported condom-less anal sex was significantly higher in cases 90/121 (74%) compared with controls 65/122 (53%); (X 2 = 11.71, p 2 = 23.14, p 2 = 7.88, p Discussion/conclusion This data demonstrates a clear correlation between STI acquisition and recreational drug use in Men who have sex with men. Interventions to reduce party drug use should be implemented on an individual, local and national level to improve the sexual health of MSM, including reducing risk-taking behaviours.