What do systematic reviews say?

Higher vs lower amino acid intake

It is very uncertain whether higher changes neurodevelopmental disability compared with lower amino acid intake (very low certainty).

• Higher versus lower amino acid intake in parenteral nutrition for newborn infants 2018 · Cochrane Headline outcomes only
  RR 1.04 [0.48, 2.23]
  2 studies · 201 participants
  Very low

Early and late (day 1 to 28 after birth) higher vs lower sodium intake

• Higher versus lower sodium intake for preterm infants 2023 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Late (seven days or more following birth) higher vs lower sodium intake

• Higher versus lower sodium intake for preterm infants 2023 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Early (less than seven days following birth) higher vs lower sodium intake

• Higher versus lower sodium intake for preterm infants 2023 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Lower vs higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm infants at birth

Lower showed no clear difference in neurodevelopmental disability compared with higher oxygen concentrations titrated to target oxygen saturations… (low certainty).

• Lower versus higher oxygen concentrations titrated to target oxygen saturations during resuscitation of preterm… 2018 · Cochrane Headline outcomes only
  RR 0.82 [0.49, 1.35]
  2 studies · 208 participants
  Low