The intervention showed no clear difference in all‐cause mortality (low certainty).
The intervention may leads to lower continued upper gastrointestinal bleeding (low certainty).
The intervention showed no clear difference in anaemia requiring blood transfusion (low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes all allergic disease ‐ childhood (incidence) compared with human milk feeding ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes food allergy ‐ childhood (incidence) compared with cow's milk formula ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes cow's milk allergy ‐ infancy (incidence) compared with cow's milk formula ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes cow's milk allergy ‐ childhood (incidence) compared with cow's milk formula ‐ low‐risk infants (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes all allergic disease ‐ Infancy (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes all allergic disease ‐ Childhood (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes asthma ‐ Infancy (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes eczema ‐ Infancy (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes rhinitis ‐ Infancy (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes food allergy ‐ Infancy (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether prolonged feeding: hydrolysed formula changes cow's milk allergy ‐ Infancy (incidence) compared with cow's milk formula (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes asthma ‐ childhood (incidence) compared with human milk feeding ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes eczema ‐ childhood (incidence) compared with human milk feeding ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes food allergy ‐ childhood (incidence) compared with human milk feeding ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes cow's milk allergy ‐ infancy (incidence) compared with human milk feeding ‐ low‐risk infants (very low certainty).
It is very uncertain whether early short‐term feeding: hydrolysed formula changes cow's milk allergy ‐ childhood (incidence) compared with human milk feeding ‐ low‐risk infants (very low certainty).