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Table 1 Details of included reviews

From: Mechanisms of change for interventions aimed at improving the wellbeing, mental health and resilience of children and adolescents affected by war and armed conflict: a systematic review of reviews

Review authors and year Review design Years of inclusion Number of studies included Total number of participants Age of participants Countries and regions included Type of conflict included  
Ager et al. [17] Systematic review of quantitative studies 1997–2012 10 NR Age 4 to late teens Darfur, Indonesia, Myanmar, Palestine, Serbia, Sudan (north), Uganda, Yemen Humanitarian and emergency contexts including conflict and natural disasters  
Apfel & Simon [1] Unsystematic narrative review NR NR NR Children Argentina, Basque, Bosnia, Cambodia, Ethiopia, Israel, Iraq, Israel, Lebanon, Mozambique, Palestine, Vietnam, worldwide holocaust survivors War and armed conflict
Betancourt et al. [14] Systematic review of quantitative studies 1990–2011 53 32,046 Children, Adolescents & Youth Angola, Bosnia, Burundi, Croatia, El Salvador, Indonesia, Israel, Kosovan & Roma refugees in Germany, Kosovo, Lebanon, Nepal, Palestine Rwandan & Somali refugees in Uganda, Serbia, Sierra Leone, Sri Lanka, Sudan, Sudanese & Sierra Leonean refugees in USA Post-conflict settings or a setting with protracted political violence  
Brown et al. [37] Systematic review of quantitative studies (RCTs or CTs) 1840–2015 28 5457 ≤ 24 Bosnia, Burundi, Democratic Republic of the Congo, Indonesia, Iran, Kosovo, Lebanon, Nepal, Palestine, Rwanda, Sierra Leone, Sri Lanka, Uganda Areas affected by recent or ongoing conflict (post-World War II), including former child soldiers, and in a LMIC  
Gillies et al. [48] Systematic review of quantitative studies (RCTs or quasi-RCTs) 1974–2015 13 2936 ≤ 18 Bosnia, Burundi, Democratic Republic of the Congo, Indonesia, Israel, Palestine, Sierra Leone, Sri Lanka Sub-group analysis based on type of trauma: Community violence or war  
Jordans, Pigott & Tol [36] Systematic review of quantitative and qualitative studies 2009–2015 24 4848 Children & Adolescents Bosnia & Herzegovina, Burundi, Democratic Republic of the Congo, Indonesia, Palestine, South Sudan, Sri Lanka, Sudan, Uganda War, armed conflict or community violence, and a LMIC  
Jordans et al. [13] Systematic review of qualitative and quantitative studies 1991–2008 66 1824 Child & Adolescents Afghanistan, Angola, Azarbaijan, Chechnya, Croatia, Bosnia, Ethiopia, Guatemala, Iraq, Kosovo, Mexico, Mozambique, Rwanda, Sierra Leone, Sri Lanka, Uganda, West-Bank & Gaza, Zimbabwe War, armed conflict or community violence, and a LMIC  
Kalskma-Van Lith [49] Unsystematic narrative review NR NR NR Children & Adolescents NR War-affected areas  
O’Sullivan, Bosqui & Shannon [15] Systematic review of quantitative studies (RCTs or CTs) 1806–2014 17 4956 Youths 5–25 Bosnia, Burundi, Democratic Republic of the Congo, Indonesia, Israel, Lebanon, Nepal, Palestine, Sri Lanka, Uganda Protracted armed conflict or political violence  
Peltonen & Punamäki [6] Systematic literature review of quantitative studies (RCTs, quasi-experimental or experimental) 1980–2008 19 1349 <  18 Bosnia, Croatia, Gaza, Kosovan refugees in Germany, New York, Refugees from Croatia, Bosnia and Herzegovina in Slovenia Refugees in London, Somali refugees in Boston, Somali refugees in Uganda, Sri Lanka Armed conflict, war, military violence, terrorism or living as refugees  
Tol, Song & Jordans [11] Systematic review of quantitative and qualitative studies Up until 2012 53 730 <  18 Croatia, Afghanistan, Gaza, Sierra Leone Armed conflict, war or political violence, and in a LMIC  
Tol et al. [20] Systematic review of quantitative studies (RCTs) Treatment, prevention and promotion Up until Sept 2010 19 4239 Sub-group analysis: Children & adolescents Armenia, Bosnia & Herzegovina, Burundi, Ethiopia, India, Indonesia, Iran, Lebanon, Nepal, occupied Palestinian territories, Rwanda, Sri Lanka, Uganda Humanitarian disaster, war, armed conflict or political violence, in a LMIC
War Child [21] Unsystematic narrative review Treatment, prevention and promotion NR NR NR Children & adolescents NR War-affected areas
  1. CTs Controlled Trials, LMIC Low or Middle Income Country, NR Not reported, RCTs Randomised Controlled Trials