Study	Reason for exclusion
Abeku 2014	Study design did not meet inclusion criteria
Bekele 2012	Study design did not meet inclusion criteria
Diallo 2015	Study design did not meet inclusion criteria
Fullman 2013	Study design did not meet inclusion criteria
Gari 2016	Study design did not meet inclusion criteria
Gimnig 2016	Study design did not meet inclusion criteria
Hamel 2011	Study design did not meet inclusion criteria
Katureebe 2016	Study design did not meet inclusion criteria
Kitau 2015	Duplicate (data from West 2014)
Lyimo 1991	Study design did not meet inclusion criteria
Matowo 2015	Study design did not meet inclusion criteria
Pinder 2011	Duplicate (study protocol of Pinder 2015)
Pinder 2012	Duplicate (conference abstract of Pinder 2015)
Protopopoff 2007a	Study design did not meet inclusion criteria
Protopopoff 2007b	Study design did not meet inclusion criteria
Protopopoff 2015a	Duplicate (conference abstract of West 2014)
Protopopoff 2015b	Duplicate (data from West 2014)
West 2012	Duplicate (conference abstract of West 2014)
West 2015	Study design did not meet inclusion criteria
Zhou 2013	Study design did not meet inclusion criteria