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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

2,353 questions in 210 reviews · Neonatal

current versions
No studies 432 · 18.4%Ungraded 99 · 4.2%Very low 609 · 25.9%Low 737 · 31.3%Moderate 385 · 16.4%High 91 · 3.9%

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.

QuestionEffectEvidenceStatus / GRADE
Fish oil lipid emulsion (LE) vs another fish oil LE
Conjugated bilirubin levels – MOFS‐LE vs MFS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 55 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Growth rate – MS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 60 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Growth rate – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted2 studies · 123 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
PNALD/cholestasis (any definition) – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1 [0.26, 3.86]4 studies · 261 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1 [0.15, 6.82]2 studies · 159 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – all fish oil LE vs non‐fish oil LE (combined subgroups) · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.61 [0.24, 1.56]4 studies · 328 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Death before discharge – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1 [0.21, 4.82]3 studies · 224 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Death before discharge – MS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 60 participantsUngraded
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Any ROP – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.98 [0.67, 1.43]3 studies · 142 participantsVery low
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Any BPD – OS‐LE vs S‐LE (sensitivity analysis) · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.01 [0.57, 1.79]3 studies · 197 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Culture‐positive sepsis – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.22 [0.54, 2.78]2 studies · 164 participantsLow
Alternative lipid emulsion (LE) vs soybean oil‐based LE (S‐LE)
Conjugated bilirubin levels – OS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted5 studies · 310 participantsLow
Alternative lipid emulsion (LE) vs another alternative‐LE
Growth rate – MS‐LE vs OS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 59 participantsLow
Alternative lipid emulsion (LE) vs another alternative‐LE
PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – MS‐LE vs OS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 2.9 [0.12, 68.5]1 study · 59 participantsLow
Alternative lipid emulsion (LE) vs another alternative‐LE
Death before discharge – MS‐LE vs OS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 60 participantsUngraded
Alternative lipid emulsion (LE) vs another alternative‐LE
CLD (oxygen requirement at 36 weeks' postmenstrual age) – MS‐LE vs OS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.77 [0.23, 2.6]1 study · 59 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
PNALD/cholestasis (any definition: low and unclear risk of bias studies) – all fish oil LE vs non‐fish oil LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.8 [0.53, 1.21]10 studies · 1024 participantsLow
Alternative lipid emulsion (LE) vs another alternative‐LE
Any sepsis (clinical or culture positive (or both)) – MS‐LE vs OS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.93 [0.65, 5.73]1 study · 59 participantsLow
Alternative lipid emulsion (LE) vs another alternative‐LE
Conjugated bilirubin levels – MS‐LE vs OS‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 59 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.11 [0.08, 15.28]1 study · 19 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Death before discharge – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 19 participantsUngraded
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Culture‐positive sepsis – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.11 [0.39, 3.19]1 study · 19 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Conjugated bilirubin levels – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 19 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Neurodevelopmental outcomes (6 months) – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 11 participantsUngraded
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Neurodevelopmental outcomes (24 months) – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 10 participantsUngraded
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Resolution of PNALD/ cholestasis (conjugated bilirubin < 2 mg/dL) Pure F‐LE vs Intralipid · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 5.6 [0.34, 93.35]1 study · 16 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
PNALD/ cholestasis (any definition) MOFS‐LE vs S‐LE Pure F‐LE vs S‐LE · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.54 [0.32, 0.91]2 studies · 40 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
PNALD/cholestasis (any definition): combined subgroups (all studies) – all fish oil LE vs non‐fish oil LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.63 [0.43, 0.91]11 studies · 1154 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Growth rate Pure F‐LE vs S‐LE · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 16 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Head growth velocity Pure F‐LE vs S‐LE · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 16 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Death before discharge – MOFS‐LE vs S‐LE – Pure F‐LE vs IL · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.24 [0.03, 1.87]2 studies · 40 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Any sepsis – MOFS‐LE vs S‐LE – Pure F‐LE vs IL · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.21 [0.5, 2.92]2 studies · 40 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Conjugated bilirubin levels – MOFS‐LE vs S‐LE · parenterally fed preterm infants with cholestasis
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted1 study · 24 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Death before discharge – MOFS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.24 [0.81, 1.9]9 studies · 855 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
ROP ≥ stage 3 or requiring surgery – all fish oil LE vs non‐fish oil LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 0.8 [0.55, 1.16]7 studies · 731 participantsVery low
Fish oil lipid emulsion (LE) vs non‐fish oil LE
CLD (oxygen requirement at 36 weeks' postmenstrual age) – MOFS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1 [0.75, 1.34]6 studies · 581 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Culture‐positive sepsis – fish oil LE vs non‐fish oil LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
RR 1.16 [0.91, 1.48]7 studies · 774 participantsLow
Fish oil lipid emulsion (LE) vs non‐fish oil LE
Conjugated bilirubin levels – MOFS‐LE vs S‐LE · parenterally fed preterm infants
Lipid emulsions for parenterally fed preterm infants (2019) · Cochrane
no estimate extracted8 studies · 673 participantsLow
Fish oil LE vs non‐fish oil LE
PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) Pure F‐LE vs S‐LE · parenterally fed term and late preterm infants with surgical conditions
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 1.11 [0.08, 15.28]1 study · 19 participantsVery low
Fish oil LE vs non‐fish oil LE
Resolution of PNALD/cholestasis (conjugated bilirubin less than2 mg/dL) Pure F‐LE vs S‐LE · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 5.6 [0.34, 93.35]1 study · 16 participantsVery low
Fish oil LE vs non‐fish oil LE
Growth rate (g/week) Pure F‐LE vs S‐LE · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
no estimate extracted1 study · 16 participantsVery low
Fish oil LE vs non‐fish oil LE
Any sepsis (clinical or culture positive (or both)) MOFS‐LE vs S‐LE Pure F‐LE vs S‐LE · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 1.21 [0.5, 2.92]2 studies · 40 participantsVery low
Fish oil LE vs non‐fish oil LE
Hypertriglyceridaemia · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 0.79 [0.3, 2.09]1 study · 24 participantsVery low
Fish oil LE vs non‐fish oil LE
Conjugated bilirubin levels · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
no estimate extracted1 study · 24 participantsLow
Fish oil LE vs non‐fish oil LE
ALP levels (IU/L) · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
no estimate extracted1 study · 24 participantsLow
Fish oil LE vs non‐fish oil LE
Rate of change of conjugated bilirubin · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
no estimate extracted1 study · 16 participantsVery low
Fish oil LE vs non‐fish oil LE
Death before discharge · parenterally fed term and late preterm infants
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 0.24 [0.03, 1.87]2 studies · 40 participantsVery low
Fish oil LE vs non‐fish oil LE
PNALD/cholestasis (any definition) · parenterally fed term and late preterm infants with surgical conditions
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 1.2 [0.38, 3.76]2 studies · 68 participantsLow
Fish oil LE vs non‐fish oil LE
Culture‐positive sepsis · parenterally fed term and late preterm infants with surgical conditions
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
RR 1.05 [0.47, 2.34]2 studies · 51 participantsVery low
Fish oil LE vs non‐fish oil LE
Hypertriglyceridaemia (definitions varied from > 250 mg/dL to > 300 mg/dL) · parenterally fed term and late preterm infants with surgical conditions
Lipid emulsions for parenterally fed term and late preterm infants (2019) · Cochrane
no estimate extracted2 studies · 68 participantsUngraded