Comparison 1. Early short‐term feeding: hydrolysed formula versus human milk feeding ‐ low‐risk infants.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 All allergic disease	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
1.1 Childhood (incidence)	1	90	Risk Ratio (M‐H, Fixed, 95% CI)	1.43 [0.38, 5.37]
2 Asthma	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
2.1 Childhood (incidence)	1	90	Risk Ratio (M‐H, Fixed, 95% CI)	0.48 [0.05, 4.41]
3 Eczema	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
3.1 Childhood (incidence)	1	90	Risk Ratio (M‐H, Fixed, 95% CI)	0.48 [0.05, 4.41]
4 Food allergy	1		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
4.1 Childhood (incidence)	1	90	Risk Ratio (M‐H, Fixed, 95% CI)	1.43 [0.38, 5.37]
5 Cow's milk allergy	2		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
5.1 Infancy (incidence)	1	3559	Risk Ratio (M‐H, Fixed, 95% CI)	0.87 [0.52, 1.46]
5.2 Childhood (incidence)	1	90	Risk Ratio (M‐H, Fixed, 95% CI)	7.11 [0.35, 143.84]