Imrie, J; Stephenson, JR; Cowan, FM; Wanigaratne, S; Billington, AJP; Copas, AJ; French, L; ... Behav Intervention Gay Men Project; + view all Imrie, J; Stephenson, JR; Cowan, FM; Wanigaratne, S; Billington, AJP; Copas, AJ; French, L; French, PD; Johnson, AM; Behav Intervention Gay Men Project; - view fewer (2001) A cognitive behavioural intervention to reduce sexually transmitted infections among gay men: randomised trial. BRIT MED J , 322 (7300) 1451 - 1456.

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Abstract

Objective To determine the effectiveness of a brief cognitive behavioural intervention in reducing the incidence of sexually transmitted infections among gay men.Design Randomised controlled trial with 12 months' follow up.Setting Sexual health clinic in London.Participants 343 gay men with an acute sexually transmitted infection or who reported having had unprotected anal intercourse in the past year.Main outcome measures Number of new sexually transmitted infections diagnosed during follow up and self reported incidence of unprotected anal intercourse.Results 72% (361/499) of men invited to enter the study did so. 90% (308/343) of participants returned at least one follow up questionnaire or re-attended the clinic and requested a check up for sexually transmitted infections during follow up. At baseline, 37% (63/172) of the intervention group and 30% (50/166) of the control group reported having had unprotected anal intercourse in the past month. At. 12 months, the proportions were 27% (31/114) and 32% (39/124) respectively (P = 0.56). However, 31% (38/123) of the intervention group and 21% (35/168) of controls had had at least one new infection diagnosed at the clinic (adjusted odds ratio 1.66, 95% confidence interval 1.00 to 2.74). Considering only men who requested a check up for sexually transmitted infections, the proportion diagnosed with a new infection was 58% (53/91) for men in the intervention group and 43% (35/81) for men in the control group (adjusted odds ratio 1.84, 0.99 to 3.40). Using a regional database that includes information from 23 sexual health clinics in London, we determined that few participants had attended other sexual health clinics.Conclusions This behavioural intervention was acceptable and feasible to deliver, but it did not reduce the risk of acquiring a new sexually transmitted infection among these gay men at high risk. Even carefully designed interventions should not be assumed to bring benefit. It is important to evaluate their effects in randomised trials with objective clinical end points.

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