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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
Use of initial sustained inflation vs standard inflations
Cranial ultrasound abnormalities ‒Intraventricular haemorrhage grade 3 to 4 · preterm infants resuscitated by PPV at birth
Sustained versus standard inflations during neonatal resuscitation to prevent mortality and improve… (2020) · Cochrane
RR 0.85 [0.56, 1.28]6 studies · 735 participantsLow
Intervention NR
Death ‒in the delivery room · infants below 33 weeks of postmenstrual age who required resuscitation in the delivery room
Sustained versus standard inflations during neonatal resuscitation to prevent mortality and improve… (2020) · Cochrane
no estimate extracted1 study · 9 participantsUngraded
Intervention NR
Death ‒before discharge · infants below 33 weeks of postmenstrual age who required resuscitation in the delivery room
Sustained versus standard inflations during neonatal resuscitation to prevent mortality and improve… (2020) · Cochrane
RR 4.17 [0.25, 68.16]1 study · 9 participantsVery low
High vs moderate protein concentration of human milk fortifier
Weight gain (g/kg/day) until the end of the intervention · promoting growth and neurological development in preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted6 studies · 606 participantsModerate
Moderate vs low protein concentration of human milk fortifier
Cerebral palsy at ≥ 18 months · preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Moderate vs low protein concentration of human milk fortifier
Developmental delay at ≥ 18 months · preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Moderate vs low protein concentration of human milk fortifier
Mortality during the intervention period · preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
RR 0.48 [0.05, 5.17]1 study · 112 participantsUngraded
High vs moderate protein concentration of human milk fortifier
Length gain (cm/week) until the end of the intervention · promoting growth and neurological development in preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted5 studies · 547 participantsVery low
High vs moderate protein concentration of human milk fortifier
Head circumference gain (cm/week) until the end of the intervention · promoting growth and neurological development in preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted5 studies · 549 participantsVery low
High vs moderate protein concentration of human milk fortifier
Cerebral palsy at ≥ 18 months · promoting growth and neurological development in preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
High vs moderate protein concentration of human milk fortifier
Developmental delay at ≥ 18 months · promoting growth and neurological development in preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
High vs moderate protein concentration of human milk fortifier
Mortality during intervention period · promoting growth and neurological development in preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted1 study · 45 participantsUngraded
Moderate vs low protein concentration of human milk fortifier
Weight gain (g/kg/day) until the end of the intervention · preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted2 studies · 176 participantsVery low
Moderate vs low protein concentration of human milk fortifier
Length gain (cm/week) until the end of the intervention · preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted3 studies · 217 participantsLow
Moderate vs low protein concentration of human milk fortifier
Head circumference gain (cm/week) until the end of the intervention · preterm infants
Comparison of different protein concentrations of human milk fortifier for promoting growth and neurological… (2020) · Cochrane
no estimate extracted3 studies · 217 participantsVery low
Lactoferrin supplementation vs control
All‐cause Mortality№ of participants: 5510(11 RCTs) · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.97 [0.79, 1.2]NRVery low
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
All‐cause mortality · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.58 [0.3, 1.13]2 studies · 671 participantsVery low
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
Bacterial sepsis · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.28 [0.11, 0.72]1 study · 319 participantsLow
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
Fungal Infection · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.24 [0.08, 0.71]2 studies · 494 participantsLow
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
Chronic lung disease · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.67 [0.25, 1.79]1 study · 319 participantsVery low
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
Length of stay among survivors · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
no estimate extracted1 study · 496 participantsVery low
Lactoferrin supplementation vs control
necrotizing enterocolitis№ of participants: 4874(7 RCTs) · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.9 [0.69, 1.17]NRLow
Lactoferrin supplementation vs control
Late onset sepsis№ of participants: 5425(12 RCTs) [Data includes both suspected and confirmed sepsis] · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.8 [0.72, 0.89]NRLow
Lactoferrin supplementation vs control
Bacterial sepsis№ of participants: 3565(8 RCTs) · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.86 [0.74, 1]NRLow
Lactoferrin supplementation vs control
Fungal infection№ of participants: 3266(6 RCTs) · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.23 [0.1, 0.54]NRLow
Lactoferrin supplementation vs control
Chronic lung disease№ of participants: 2984(5 RCTs) · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 1 [0.89, 1.12]NRLow
Lactoferrin supplementation vs control
Length of hospital stay№ of participants: 1079(3 RCTs) · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
no estimate extractedNRVery low
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
Any late‐onset sepsis ‐ All infants [Data on only confirmed sepsis available] · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.25 [0.14, 0.46]3 studies · 564 participantsLow
Lactoferrin supplementation with enteral feeds in combination with probiotics vs placebo
NEC ≥ stage II · prevention of sepsis and necrotizing enterocolitis in preterm infants
Enteral lactoferrin supplementation for prevention of sepsis and necrotizing enterocolitis in preterm infants (2020) · Cochrane
RR 0.04 [0, 0.62]1 study · 496 participantsVery low
Zinc supplementation vs placebo; no treatment
Length (cm) after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
no estimate extracted3 studies · 644 participantsModerate
Zinc supplementation vs placebo; no treatment
Weight (g) after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
no estimate extracted3 studies · 644 participantsLow
Zinc supplementation vs placebo; no treatment
Weight for age Z‐score after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
no estimate extracted3 studies · 955 participantsModerate
Zinc supplementation vs placebo; no treatment
Length for age Z‐score after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
no estimate extracted3 studies · 955 participantsModerate
Zinc supplementation vs placebo; no treatment
Weight for length z‐score after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
no estimate extracted3 studies · 955 participantsModerate
Zinc supplementation vs placebo; no treatment
Stunted after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
RR 0.82 [0.65, 1.03]3 studies · 955 participantsModerate
Zinc supplementation vs placebo; no treatment
Wasted after 6 months · the promotion of growth and prevention of infections in infants less than six months of age
Zinc supplementation for the promotion of growth and prevention of infections in infants less than six… (2020) · Cochrane
RR 0.78 [0.48, 1.26]3 studies · 955 participantsLow
Intervention NR
PIPP score (difference between baseline and heel lance period) · Neonates
Paracetamol (acetaminophen) for prevention or treatment of pain in newborns (2020) · Cochrane
no estimate extracted1 study · 72 participantsLow
Intervention NR
Duration of crying (seconds) during the first 3 minutes · Neonates
Paracetamol (acetaminophen) for prevention or treatment of pain in newborns (2020) · Cochrane
no estimate extracted1 study · 72 participantsLow
Intervention NR
PIPP (maximum score within 3 minutes following lancing) · Neonates
Paracetamol (acetaminophen) for prevention or treatment of pain in newborns (2020) · Cochrane
no estimate extracted1 study · 38 participantsLow
Intervention NR
PIPP score in first 45 seconds of eye examination · Neonates
Paracetamol (acetaminophen) for prevention or treatment of pain in newborns (2020) · Cochrane
no estimate extracted1 study · 80 participantsLow
Intervention NR
PIPP score 5 minutes after eye examination · Neonates
Paracetamol (acetaminophen) for prevention or treatment of pain in newborns (2020) · Cochrane
no estimate extracted1 study · 11 participantsVery low
Phototherapy with reflective curtains vs phototherapy alone
Decline in bilirubin at 4 to 8 hours (μmol/L) · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted3 studies · 281 participantsModerate
Reflective curtains vs intensified phototherapy
Acute life‐threatening events · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted1 study · 159 participantsUngraded
Reflective curtains vs intensified phototherapy
Patient satisfaction · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted1 study · 159 participantsUngraded
Reflective curtains vs intensified phototherapy
Breastfeeding on discharge · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted1 study · 159 participantsUngraded
Phototherapy with reflective curtains vs phototherapy alone
Decline in serum bilirubin (over 24 hours) · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted9 studies · 893 participantsVery low
Phototherapy with reflective curtains vs phototherapy alone
Exchange transfusion · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted2 studies · 2 participantsUngraded
Phototherapy with reflective curtains vs phototherapy alone
Acute life‐threatening events · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted11 studies · 11 participantsUngraded
Phototherapy with reflective curtains vs phototherapy alone
Parental satisfaction · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted11 studies · 11 participantsUngraded
Phototherapy with reflective curtains vs phototherapy alone
Breastfeeding ondischarge · newborn infants with unconjugated hyperbilirubinaemia
Use of reflective materials during phototherapy for newborn infants with unconjugated hyperbilirubinaemia (2020) · Cochrane
no estimate extracted11 studies · 11 participantsUngraded