“…The majority ( n = 37, 82%) involved populations living in or fleeing from conflict-affected countries while only eight were of populations affected by natural disasters ( Ramachandran, 2005 ; Chan and Kim, 2011 , 2010 ; Hung et al , 2013 ; Sun et al , 2013 ; Martinez et al , 2015 ; Mobula et al , 2016 ; Adrega et al , 2018 ). Among the studies from conflict-affected contexts, almost half ( n = 18, 49%) concerned the protracted displacement of Palestinian populations served by UNRWA in their five fields of operation within the MENA region ( Yusef, 2000 ; Mousa et al , 2010 ; Khader et al , 2012a,b, 2013 , 2014a,b ,c; Alabed et al , 2014 ; Saadeh et al , 2015 ; Shahin et al , 2015 ; Santoro et al , 2016 ; Radwan et al , 2017 ; Damiri et al , 2018 ; Saleh et al , 2018a,b ,c; Abu Kishk et al , 2019 ); 10 concerned Syrian refugees in the host countries Jordan, Lebanon, and Turkey ( Kallab, 2015 ; Collins et al , 2017 ; Doocy et al , 2017 ; Hyatt, 2017 ; Sethi et al , 2017 ; Elliott et al , 2018 ; Alawa et al , 2019 ; Kayali et al , 2019 ; McNatt et al , 2019 ; Boulle et al , 2019b ); three described forcibly displaced Iraqis in Iraq and Jordan ( Mateen et al , 2012 ; Istepanian et al , 2014 ; Baxter et al , 2018 ); five concerned protracted conflicts in Mali, Democratic Republic of Congo (DRC), or Myanmar (Burma) and one described an acute conflict setting in the Philippines ( Besancon et al , 2015 ; Murphy et al , 2017 ; Naing and Bakker, 2018 ; <...>…”