Table 1 Phases of adaptation of the EASE intervention for displaced Burundian adolescents in Tanzania

Phase 1: Desk review

To synthesize existing knowledge on mental health among Burundian conflict-affected populations

Academic and grey literature databases searched using selected keywords

Worksheet developed to summarise information from 24 articles on cultural concepts of mental health, available services and culturally appropriate measures used with Burundian communities

Phase 2: Rapid qualitative assessment

To understand mental health concerns, experiences of violence and coping strategies of young Burundian refugees and preferences for seeking support from their own and other key stakeholders’ perspectives

Free listing (n = 61) and key informant interviews (n = 24)

List of most salient mental health problems and experiences of violence, and a thematic framework with in-depth information on perceived gender and age differences, barriers and facilitators to support seeking and ways of coping

Phase 3: Group cognitive interviews

To check that the intervention materials were easily and accurately understandable, acceptable and relevant for adolescents and caregivers

Participants (n = 20) shown core intervention materials to assess understanding and acceptability of materials

Response sheets to check comprehension by participants against intended meaning and preparation of a list of problem areas that needed to be adapted

Phase 4: Adaptation workshop

To review data from earlier phases and propose recommendations for adaptation

Group read through of intervention sessions and supporting materials, review of data from earlier phases and consensus on proposed adaptations

Adaptations log with suggested changes and corresponding Bernal codes