Details of ethics approval
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 on the 9th of April 2018.