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Mental Health First Aid training for Chile and Argentina: protocol for a cluster randomised controlled trial

Agrest M, Encina-Zúñiga E, Ardila-Gómez S, Fernandez MA, Gabriel R, Bargamian J, Alvarado R, Morgan AJ et al.

BMJ open, 2026

240 participants

Abstract

Introduction: Community support for individuals with mental health problems is a global public health issue. Poor mental health literacy and high levels of stigmatising attitudes among the general population can hinder both help-seeking behaviours and limit the capacity of community members to provide support to people experiencing mental health challenges. The Mental Health First Aid (MHFA) training course was created to educate community members to provide initial help towards a person developing a mental health problem. MHFA training has spread to high-income countries, but there is relatively little research on cultural adaptation to lower-resource settings. This study aims to fill that gap and is the first cluster randomised controlled trial (cRCT) assessing the effectiveness of MHFA training in Chile and Argentina.

Methods and analysis: The study involves a two-arm wait-list cRCT with 240 participants (120 in each country). The study will be conducted in three settings in each of Chile and Argentina (eg, universities, health services and workplaces). Two clusters per setting in each country will be paired and randomly allocated to the intervention (the MHFA training for Chile and Argentina) or the wait-list control group. Participants in the intervention arm will be asked to complete questionnaires at baseline (T1), after training completion (T2) and 6 months after completion (T3), with control arm participants completing data collection at corresponding time points.…

How strong is the evidence?

Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 240 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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