The clinical effectiveness and cost-effectiveness of brief intervention for excessive alcohol consumption among people attending sexual health clinics: a randomised controlled trial (SHEAR).

Background: Excessive use of alcohol is associated with poor sexual health, but the clinical effectiveness and cost-effectiveness of brief alcohol intervention in this setting has not been investigated.

Objective: To examine the effects and cost-effectiveness of brief intervention for excessive alcohol consumption among people who attend sexual health clinics.

Design: A two-arm, parallel-group, single-blind, pragmatic, randomised controlled trial.