Prior research suggests that brief interventions (BIs) for alcohol and other drug use may vary in effectiveness across patient sociodemographic factors. The objective of this individual participant data (IPD) meta-analysis was to explore for whom BIs delivered in general healthcare settings are more or less effective. We examined variability in BI…

COVID-19 lockdowns have significantly disrupted the daily lives of children and adolescents, with increased?time at home, online learning and limited physical social interaction. This report seeks to understand the immediate effects on their mental health. Covering more than 130,000 children and adolescents across 22 countries, the evidence…