Study Characteristics				Page/ Para/ Figure #
Type of study	c Randomised Controlled Trial (RCT) c Cluster Randomised Controlled Trial (cluster RCT)		c Controlled Before and After (CBA) study · Contemporaneous data collection · Comparable control site · At least 2 x intervention and 2 x control clusters
	c Interrupted Time Series (ITS) · At least 3 time points before and 3 after the intervention · Clearly defined intervention point		c Non‐randomised controlled trials
	c Historically controlled studies
	c Quasi randomised		Does the study design meet the criteria for inclusion? Yes c No c Exclude Unclear c
	Description in text:
Participants	Describe the participants included: Children from low and middle income countries, from birth to five years old living in urban slums in low and middle income countries (LMIC).
	Are participants defined as a group having specific social or cultural characteristics?	Yes c No c Unclear c Details:
	How is the geographic boundary defined?	Details: Specific location (e.g. state / country):
	Do the participants meet the criteria for inclusion?	Yes c No c Exclude Unclear c