“…Compared with resident populations and other forcibly displaced populations such as refugees, these IDPs typically experience higher rates of mortality, communicable diseases, non-communicable diseases (NCDs) and mental disorders ( Greene-Cramer et al., 2020 ; Heudtlass et al., 2016 ; Lam et al., 2015 ; Porter and Haslam, 2005 ; Villamizar-Pena et al., 2021 ). Explanations for these worse health outcomes include exposure to higher levels of violence, poverty, worse living conditions, and reduced access to health services ( World Bank, 2017 ; Cantor and Apollo, 2020 ; Cantor and Wooley, 2020 ; Cantor et al., 2021 ; Ekezie et al., 2020 ). One factor underpinning these differentials is that, unlike refugees, IDPs do not generally benefit from an agreed international legal status and nor do they have an international agency dedicated specifically to protecting and assisting them ( Hakamies et al., 2008 ; Rae, 2011 ) (although there are now some regional treaties on IDP protection and assistance and diffuse responsibilities for different aspects of the IDP response are allocated through the humanitarian ‘cluster’ system ( Cantor, 2018 )).…”