Table 2. Population, interventions, comparator, outcomes, and study design criteria.

Category	Inclusion criteria
Population	Infants of age 0 to 6 months, living in low- and middle-income countries
Intervention	•   Micronutrient & calcium supplementation to mothers or infants •   Food supplementation to mothers or infants •   Kangaroo care* •   Deworming •   Maternal and breastfeeding education and promotion •   Water, sanitation and hygiene (WASH) intervention
Comparators	•   Placebo •   Standard-of-care (if applicable) •   No intervention •   Any of the interventions listed above as monotherapy or in combination that can be used for indirect comparison
Outcomes	At least one of the following outcomes (reported after at least 2 months, *except for kangaroo care): •   Length for age z-score (LAZ) •   Proportion of stunted (LAZ < -2SD) •   Length or height •   Head circumference
Study Design	Randomized clinical trials
Other	Published in the English language