A comparison of the efficacy of brief interventions to reduce hazardous and harmful alcohol consumption between European and non-European countries: a systematic review and meta-analysis of randomized controlled trials

摘要

AimsThe extent of variation attributable to regional differences for the efficacy of brief intervention (BI) to reduce hazardous and harmful alcohol consumption is unclear. The primary aim of this study was to determine overall efficacy of BI at 6- and 12-month follow-up in primary health care (PHC) and emergency department (ED) studies. The secondary aim was to examine whether variance in study outcome can be explained by the geographical region in which trials have taken place (European versus non-European).