Alcohol misuse in humanitarian settings sits at a troubling intersection of trauma, displacement, and scarce mental health infrastructure — yet it has been nearly invisible in global health research. A rigorous randomized controlled trial conducted in a refugee settlement offers rare causal evidence that a structured, non-specialist-delivered intervention can meaningfully reduce harmful drinking among one of the world's most underserved populations.
The trial enrolled Congolese refugees and Zambian host community members aged 15 and older at the Mantapala refugee settlement, selecting participants who screened positive on the Alcohol Use Identification Test — scores of 8 or above for males and 4 or above for females. Roughly half received a multicomponent SBIRT protocol: structured screening, a brief motivational intervention, and referral to non-specialist-delivered psychotherapy addressing both alcohol and co-occurring mental health conditions. The comparator arm received standard-of-care referral to primary health staff trained in basic alcohol management. The primary endpoint was AUDIT score change at six months, analyzed via linear mixed models under intention-to-treat principles with multiple imputation for missing data. A cost-effectiveness analysis and qualitative implementation assessment were conducted alongside the trial.
This study carries several layers of significance for the broader evidence base. SBIRT has solid efficacy data in high-income, primary care contexts, but its transportability to low-resource, humanitarian settings — where trained clinicians are scarce and social stressors are acute — has been poorly tested. A randomized design with allocation concealment and intention-to-treat analysis in this context is methodologically rare and substantially strengthens any observed effect. The hybrid type 1 design, which prioritizes effectiveness while simultaneously gathering implementation data, is exactly the pragmatic approach needed to inform real-world scale-up. Key limitations include the single-settlement geographic scope, potential reliance on self-reported alcohol use, and the challenge of generalizing from a predominantly Congolese refugee population to other humanitarian contexts. If cost-effectiveness findings are favorable, this work could genuinely shift humanitarian health programming priorities — an incremental finding in methodology, but potentially paradigm-shifting for policy.