Table 1.

Categories used to rank evidence.

Score	Categories
Evidence of impact on morbidity or mortalitya
1	Strong evidence of benefit in efficacy and effectiveness settings and recommended for inclusion in health systems.
2	Moderate level of evidence of impact but recommended for inclusion in health systems.
3	Low level of evidence but recommended for further evaluation in health systems on additional criteria and plausibility.
Evidence and potential for delivery and inclusion in primary care programmes
1	Strong evidence of benefit in efficacy and effectiveness settings and recommended.
2	Plausible and promising evidence of impact but needs evaluation in health systems at scale.
3	Promising interventions that need further assessment in primary care settings.
Evidence on determinants of child health and behaviour change (eg. fiscal, regulatory)
1	Strong evidence of benefit in efficacy and effectiveness settings and recommended.
2	Plausible and promising evidence of impact but need more at scale.
3	Low or no evidence of scale with uncertainty if applicability.

^aCategories are based on a ranking scale developed by Bhutta Z et al. [17] and modified for this review.