Funding for this research was provided by:
Department for International Development (PO 5247)
Received: 27 June 2017
Accepted: 28 March 2018
First Online: 5 April 2018
Ethics approval and consent to participate
: Ethical approach was obtained from the Sierra Leone Scientific and Ethics Committee (no ref. number) and the Liverpool School of Tropical Medicine Research Ethics Committee (15.002). Rigorous informed consent process and mechanisms to assure confidentiality in data collection, analysis and storage were followed.
: Not applicable.
: The Corresponding Author (Joanna Raven) is also an Associate Editor for BMC Journal. The authors declare that they have no other competing interests.
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