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
Intervention NR
NIPS during heel lance Range of scale 0‐7 A lower score = less pain Lawrence 1993 · neonates with heel lance‐associated pain
Sucrose for analgesia in newborn infants undergoing painful procedures (2016) · Cochrane
no estimate extracted1 study · 56 participantsModerate
Intervention NR
PIPP ‐ Preterm infants · neonates with heel lance‐associated pain
Sucrose for analgesia in newborn infants undergoing painful procedures (2016) · Cochrane
no estimate extracted1 study · 47 participantsLow
Intervention NR
NFCS Range of scale 0‐10 in term infants 0‐9 in preterm infants A lower score = less pain Grunau 1987 · newborns with heel lance‐associated pain
Sucrose for analgesia in newborn infants undergoing painful procedures (2016) · Cochrane
no estimate extracted1 study · 100 participantsLow
Intervention NR
PIPP 30 s after heel lance (term and preterm infants) Range of scale 0‐21 for infants < 28 weeks PMA and 0‐18 for infants > 36 weeks PMA A lower score = less pain (Stevens 1996; Stevens 2014a) · newborns with heel lance‐associated pain
Sucrose for analgesia in newborn infants undergoing painful procedures (2016) · Cochrane
no estimate extracted3 studies · 278 participantsHigh
Intervention NR
PIPP 60 s after heel lance Range of scale 0‐21 for infants < 28 weeks PMA and 0‐18 for infants > 36 weeks PMA A lower score = less pain (Stevens 1996; Stevens 2014a) · newborns with heel lance‐associated pain
Sucrose for analgesia in newborn infants undergoing painful procedures (2016) · Cochrane
no estimate extracted2 studies · 164 participantsHigh
Non‐nutritive sucking (NNS) vs no NNS
Gavage to full oral feeding (days) · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted2 studies · 87 participantsLow
Non‐nutritive sucking (NNS) vs no NNS
Start oral feeding to full oral feeding (days) · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted2 studies · 100 participantsVery low
Non‐nutritive sucking (NNS) vs no NNS
Days from birth to full oral breastfeeding · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted1 study · 303 participantsLow
Non‐nutritive sucking (NNS) vs no NNS
Full breastfeeding at discharge · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted1 study · 303 participantsLow
Non‐nutritive sucking (NNS) vs no NNS
Length of hospital stay (days) · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted5 studies · 501 participantsLow
Non‐nutritive sucking (NNS) vs no NNS
Weight gain (g/day) · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted3 studies · 103 participantsLow
Non‐nutritive sucking (NNS) vs no NNS
Postconceptual age at full oral feeds (days) · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted1 study · 28 participantsVery low
Non‐nutritive sucking (NNS) vs no NNS
Intestinal transit time (hours) · preterm infants
Non‐nutritive sucking for increasing physiologic stability and nutrition in preterm infants (2016) · Cochrane
no estimate extracted1 study · 30 participantsVery low
Barbiturate treatment vs placebo or no treatment
Death or major neurodevelopmental disability · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.33 [0.14, 0.78]1 study · 31 participantsVery low
Barbiturate treatment vs placebo or no treatment
Death · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.88 [0.55, 1.42]8 studies · 429 participantsLow
Barbiturate treatment vs placebo or no treatment
Major neurodevelopmental disability · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.24 [0.06, 0.92]1 study · 31 participantsVery low
Barbiturate treatment vs placebo or no treatment
Cerebral palsy · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.58 [0.19, 1.7]2 studies · 69 participantsVery low
Barbiturate treatment vs placebo or no treatment
Developmental delay · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.54 [0.24, 1.19]2 studies · 63 participantsVery low
Barbiturate treatment vs placebo or no treatment
Seizures (clinical or electrographic) · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.62 [0.48, 0.81]6 studies · 319 participantsLow
Barbiturate treatment vs placebo or no treatment
Abnormal neurologic exam at discharge · infants with perinatal asphyxia
Prophylactic barbiturate use for the prevention of morbidity and mortality following perinatal asphyxia (2016) · Cochrane
RR 0.85 [0.67, 1.08]4 studies · 245 participantsLow
Intervention NR
Death prior to hospital discharge · Preterm infants
Glutamine supplementation to prevent morbidity and mortality in preterm infants (2016) · Cochrane
RR 0.97 [0.8, 1.17]12 studies · 2877 participantsHigh
Intervention NR
Neurodevelopmental impairment · Preterm infants
Glutamine supplementation to prevent morbidity and mortality in preterm infants (2016) · Cochrane
RR 1.07 [0.59, 1.92]1 study · 72 participantsLow
Intervention NR
Invasive infection · Preterm infants
Glutamine supplementation to prevent morbidity and mortality in preterm infants (2016) · Cochrane
RR 0.94 [0.86, 1.04]11 studies · 2815 participantsModerate
Intervention NR
Necrotising enterocolitis · Preterm infants
Glutamine supplementation to prevent morbidity and mortality in preterm infants (2016) · Cochrane
RR 0.83 [0.66, 1.06]11 studies · 2849 participantsModerate
Summary of findings table for oral immunoglobulin vs control
Definite necrotizing enterocolitis (NEC) during study period · preventing necrotizing enterocolitis in preterm and low birth weight neonates
Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth weight neonates (2016) · Cochrane
RR 0.84 [0.57, 1.25]3 studies · 1840 participantsLow
Summary of findings table for oral immunoglobulin vs control
Definite necrotizing enterocolitis (NEC) during study period ‐ IgA/IgG · preventing necrotizing enterocolitis in preterm and low birth weight neonates
Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth weight neonates (2016) · Cochrane
RR 0.08 [0, 1.39]1 study · 179 participantsVery low
Summary of findings table for oral immunoglobulin vs control
Definite necrotizing enterocolitis (NEC) during study period ‐ IgG · preventing necrotizing enterocolitis in preterm and low birth weight neonates
Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth weight neonates (2016) · Cochrane
RR 0.95 [0.63, 1.42]2 studies · 1661 participantsLow
Summary of findings table for oral immunoglobulin vs control
Definite NEC after study period · preventing necrotizing enterocolitis in preterm and low birth weight neonates
Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth weight neonates (2016) · Cochrane
RR 1.3 [0.47, 3.6]2 studies · 1661 participantsVery low
Summary of findings table for oral immunoglobulin vs control
NEC‐related surgery during study period · preventing necrotizing enterocolitis in preterm and low birth weight neonates
Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth weight neonates (2016) · Cochrane
RR 0.21 [0.02, 1.75]2 studies · 311 participantsVery low
Summary of findings table for oral immunoglobulin vs control
NEC‐related deaths during study period · preventing necrotizing enterocolitis in preterm and low birth weight neonates
Oral immunoglobulin for preventing necrotizing enterocolitis in preterm and low birth weight neonates (2016) · Cochrane
RR 1.1 [0.47, 2.59]3 studies · 1840 participantsVery low
Kangaroo mother care vs conventional neonatal care
Mortality at latest · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
RR 0.67 [0.48, 0.95]12 studies · 2293 participantsModerate
Kangaroo mother care vs conventional neonatal care
Severe infection/sepsis at latest · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
RR 0.5 [0.36, 0.69]8 studies · 1463 participantsModerate
Kangaroo mother care vs conventional neonatal care
Hypothermia at discharge or at 40 to 41 weeks’ postmenstrual age ‐ stabilized infants · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
RR 0.28 [0.16, 0.49]9 studies · 989 participantsModerate
Kangaroo mother care vs conventional neonatal care
Weight gain at latest · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
no estimate extracted11 studies · 1198 participantsModerate
Kangaroo mother care vs conventional neonatal care
Any breastfeeding at discharge or at 40 to 41 weeks' postmenstrual age ‐ stabilized infants · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
RR 1.2 [1.07, 1.34]10 studies · 1696 participantsModerate
Kangaroo mother care vs conventional neonatal care
Any breastfeeding at 1 to 3 months' · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
RR 1.17 [1.05, 1.31]9 studies · 1394 participantsLow
Kangaroo mother care vs conventional neonatal care
Griffith quotient for psychomotor development (all subscales) at 12 months' corrected age (copy) · infants with low birthweight
Kangaroo mother care to reduce morbidity and mortality in low birthweight infants (2016) · Cochrane
no estimate extracted1 study · 579 participantsLow
Prone vs supine
Death (neonatal or infant) ‐ not reported · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs supine
Desaturations · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extracted3 studies · 178 participantsLow
Prone vs lateral
Death (neonatal or infant) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs lateral
Long‐term complications (neurodevelopmental) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs lateral
Long‐term complications (bronchopulmonary dysplasia, chronic lung disease) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs lateral
Short‐term complications (respiratory) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs lateral
Short‐term complications (procedural) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs lateral
Periventricular or intraventricular haemorrhage · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs lateral
Oxygenation SpO2a · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extracted5 studies · 206 participantsVery low
Prone vs lateral
Desaturations · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Lateral vs supine
Death (neonatal or infant) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Prone vs supine
Long‐term complications (neurodevelopmental) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies
Lateral vs supine
Long‐term complications (neurodevelopmental) · neonates with mechanical ventilation
Infant position in neonates receiving mechanical ventilation (2016) · Cochrane
no estimate extractedNRNo studies