Ethical considerations and funding
Data were collected retrospectively and recorded and stored in an anonymized form without patient or provider identifiable information. This research fulfilled the exemption criteria set by the MSF’s Ethics Review Board for a posteriori analyses of routinely collected clinical data and thus did not require MSF ERB review. There was no functioning ethics review board in Yemen, and the study was conducted with permission from the Medical Director of MSF’s Operational Centre in Amsterdam. The protocol was registered at clinicaltrials.gov and MSF supported data collection, analysis and publication, with no relation to industry or multi- or bilateral agencies.