Gap finder

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
Sunlight (with or without filters or amplification) vs other sources of phototherapy
Hyperthermia while receiving sunlight or conventional phototherapyg · infants with confirmed hyperbilirubinemia
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
RR 4.39 [2.98, 6.47]2 studies · 621 participantsModerate
Sunlight (with or without filters or amplification) vs other sources of phototherapy
Deathc · infants with confirmed hyperbilirubinemia
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
RR 01 study · 447 participantsLow
Sunlight (with or without filters or amplification) vs other sources of phototherapy
Proportion of days of effective treatmenti · infants with confirmed hyperbilirubinemia
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
RR 1.02 [0.97, 1.06]2 studies · 621 participantsVery low
Sunlight (with or without filters or amplification) vs other sources of phototherapy
Hypothermia while receiving sunlight or conventional phototherapyk · infants with confirmed hyperbilirubinemia
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
RR 1.06 [0.55, 2.03]2 studies · 621 participantsModerate
Sunlight (with or without filters or amplification) vs no treatment
Use of conventional phototherapy, if sunlight (with or without filters or amplification) was first used for prevention or early treatmentc · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
no estimate extractedNRNo studies
Sunlight (with or without filters or amplification) vs no treatment
Treatment failure requiring exchange transfusionc,d · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
no estimate extractedNRNo studies
Sunlight (with or without filters or amplification) vs no treatment
Acute bilirubin encephalopathyc,e · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
no estimate extractedNRNo studies
Sunlight (with or without filters or amplification) vs no treatment
Deathc · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
no estimate extractedNRNo studies
Sunlight (with or without filters or amplification) vs no treatment
Rate of rehospitalization within 7 days of discharge for treatment for hyperbilirubinemia · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
RR 0.55 [0.27, 1.11]1 study · 482 participantsVery low
Sunlight (with or without filters or amplification) vs no treatment
Incidence of jaundice in participantsg · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
RR 0.61 [0.45, 0.82]1 study · 482 participantsVery low
Sunlight (with or without filters or amplification) vs no treatment
Duration of jaundice (days) · term and late preterm neonates
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
no estimate extracted1 study · 482 participantsVery low
Sunlight (with or without filters or amplification) vs other sources of phototherapy
Outcomesa · infants with confirmed hyperbilirubinemia
Sunlight for the prevention and treatment of hyperbilirubinemia in term and late preterm neonates (2021) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Cerebral palsy ‐ not reported · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Significant mental developmental delay ‐ not reported · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Legal blindness ‐ not reported · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Hearing deficit ‐ not reported · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Neurodevelopmental impairment ‐ not reported · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Death during initial hospitalization (all‐cause mortality) · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
RR 0.59 [0.16, 2.13]2 studies · 230 participantsVery low
Summary of findings table ‐ Continuous glucose monitoring (CGM) vs intermittent modalities
Neonatal seizures ‐ not reported · infants at risk of hypoglycaemia or hyperglycaemia
Continuous glucose monitoring for the prevention of morbidity and mortality in preterm infants (2021) · Cochrane
no estimate extractedNRNo studies
Opioids vs placebo or no treatment
Pain (PIPP) ‐ time window: ≥ 12 and < 48 hours after infusion · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extracted3 studies · 963 participantsVery low
Opioids vs other analgesics and sedatives
Neonatal mortality · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
RR 0.31 [0.01, 7.16]1 study · 46 participantsVery low
Opioids vs other analgesics and sedatives
Mortality before discharge · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Opioids vs other analgesics and sedatives
Neurodevelopmental outcomes (18 to 24 months) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Opioids vs other analgesics and sedatives
Neurodevelopmental outcomes (3 to 5 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Opioids vs other analgesics and sedatives
Neurodevelopmental outcomes (5 to 6 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs fentanyl
Pain (PIPP) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs fentanyl
Duration of mechanical ventilation (days) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs fentanyl
Neonatal mortality · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs fentanyl
Mortality to discharge · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
RR 1.21 [0.43, 3.45]1 study · 163 participantsVery low
Morphine vs fentanyl
Neurodevelopmental outcomes (18 to 24 months)Â · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Opioids vs placebo or no treatment
Duration of mechanical ventilation (days) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extracted7 studies · 1259 participantsModerate
Morphine vs fentanyl
Neurodevelopmental outcomes (3 to 5 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs fentanyl
Neurodevelopmental outcomes (5 to 6 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs diamorphine
Pain (PIPP)Â · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs diamorphine
Duration of mechanical ventilation (days) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs diamorphine
Neonatal mortality · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
RR 1.17 [0.43, 3.19]1 study · 88 participantsVery low
Morphine vs diamorphine
Mortality before discharge · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs diamorphine
Neurodevelopmental outcomes (18 to 24 months) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs diamorphine
Neurodevelopmental outcomes (3 to 5 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Morphine vs diamorphine
Neurodevelopmental outcomes (5 to 6 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Fentanyl vs sufentanil
Pain (PIPP) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Opioids vs placebo or no treatment
Neonatal mortality · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
RR 1.12 [0.8, 1.55]5 studies · 1189 participantsModerate
Fentanyl vs sufentanil
Duration of mechanical ventilation (days) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extracted1 study · 20 participantsVery low
Fentanyl vs sufentanil
Neonatal mortality · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRVery low
Fentanyl vs sufentanil
Mortality before discharge · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Fentanyl vs sufentanil
Neurodevelopmental outcomes (18 to 24 months) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Fentanyl vs sufentanil
Neurodevelopmental outcomes (3 to 5 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Fentanyl vs sufentanil
Neurodevelopmental outcomes (5 to 6 years) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies
Fentanyl vs sufentanil
Not estimable · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extracted95 participantsUngraded
Fentanyl vs remifentanil
Pain (PIPP) · neonates receiving mechanical ventilation
Opioids for newborn infants receiving mechanical ventilation (2021) · Cochrane
no estimate extractedNRNo studies