Cochrane · systematic review · CD003959

Higher versus lower protein intake in formula‐fed low birth weight infants

Fenton, TR, Al-Wassia, H, Premji, SS, et al. · Cochrane Database of Systematic Reviews · 2020 · Cochrane Library

NeonatalAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
15
current version
GRADE rated
6
No studies
9
Included studies
NR
No studies 9 · 60%Ungraded 0 · 0%Very low 1 · 6.7%Low 3 · 20%Moderate 2 · 13.3%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

High protein compared to low protein intake (restricted to studies meeting all a priori inclusion criteria) in formula‐fed low birth weight infants

Population: formula‐fed low birth weight infants
5 questions
OutcomeEffectEvidenceStatus / GRADE
Weight gain (g/kg/d)
High protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extracted5 studies · 114 participantsLow
Downgraded: risk of bias, inconsistency
Linear growth (cm/week)
High protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extracted2 studies · 48 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Head circumference growth (cm/week)
High protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extracted1 study · 18 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
IQ score and Bayley score at 18 months or later
High protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
Necrotizing enterocolitis
High protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extracted2 studies · 46 participantsLow
Downgraded: risk of bias, imprecision, inconsistency

Very high protein compared to low protein intake (restricted to studies meeting all a priori inclusion criteria) in formula‐fed low birth weight infants

Population: formula‐fed low birth weight infants
5 questions
OutcomeEffectEvidenceStatus / GRADE
Weight gain
Very high protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
Linear growth
Very high protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
Head circumference growth
Very high protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
IQ score and Bayley score at 18 months or later
Very high protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
Necrotizing enterocolitis
Very high protein vs low protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies

Very high protein compared to high protein intake (restricted to studies meeting all a priori inclusion criteria) in formula‐fed low birth weight infants

Population: formula‐fed low birth weight infants
5 questions
OutcomeEffectEvidenceStatus / GRADE
Weight gain (g/d) to discharge
Very high protein vs high protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extracted1 study · 77 participantsModerate
Downgraded: imprecision
Linear growth (cm/week)
Very high protein vs high protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extracted1 study · 77 participantsModerate
Downgraded: imprecision
Head circumference growth
Very high protein vs high protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
IQ score and Bayley score at 18 months or later
Very high protein vs high protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies
Necrotizing enterocolitis
Very high protein vs high protein intake (restricted to studies meeting all a priori inclusion criteria)
no estimate extractedNRNo studies