It is very uncertain whether higher changes food allergy ‐ childhood incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether early and late (day 1 to 28 after birth) higher changes hypernatraemia (≥ 150 mmol/L) compared with lower sodium intake (very low certainty).
Late (seven days or more following birth) higher may leads to lower hyponatraemia (< 130 mmol/L) compared with lower sodium intake (low certainty).
It is very uncertain whether late (seven days or more following birth) higher changes hypernatraemia (≥ 150 mmol/L) compared with lower sodium intake (very low certainty).
Late (seven days or more following birth) higher may leads to lower postnatal growth failure (weight < 10th percentile) compared with lower sodium intake (low certainty).
It is very uncertain whether late (seven days or more following birth) higher changes necrotising enterocolitis compared with lower sodium intake (very low certainty).
It is very uncertain whether late (seven days or more following birth) higher changes chronic lung disease compared with lower sodium intake (very low certainty).
It is very uncertain whether late (seven days or more following birth) higher changes mortality (latest time reported up to hospital discharge) compared with lower sodium intake (very low certainty).
Early (less than seven days following birth) higher showed no clear difference in mortality (latest time reported up to hospital discharge) compared with lower sodium intake (low certainty).
Early (less than seven days following birth) higher showed no clear difference in hyponatraemia (< 130 mmol/L) compared with lower sodium intake (low certainty).
Early (less than seven days following birth) higher showed no clear difference in hypernatraemia (≥ 150 mmol/L) compared with lower sodium intake (low certainty).