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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
Prebiotics vs control
Bayley Scales of Infant Development Psychomotor Development Index < 85 (assessed beyond infancy) · very preterm or very low birth weight infants
Prebiotics to prevent necrotising enterocolitis in very preterm or very low birth weight infants (2023) · Cochrane
no estimate extracted1 study · 68 participantsVery low
Prebiotics vs control
Cerebral palsy (assessed beyond infancy) · very preterm or very low birth weight infants
Prebiotics to prevent necrotising enterocolitis in very preterm or very low birth weight infants (2023) · Cochrane
no estimate extracted1 study · 76 participantsVery low
NMDA receptor antagonists vs no treatment, placebo, oral sweet solution, or non‐pharmacological intervention
Pain score during the procedure, · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRVery low
Intervention NR
Hypotension requiring medical therapy (vasopressors or fluid boluses), occurring during the procedure No. of participants: 124(1 RCT) · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
RR 5.53 [0.27, 112.3]NRVery low
NMDA receptor antagonists vs no treatment, placebo, oral sweet solution, or non‐pharmacological intervention
Pain score assessed up to 10 minutes after the procedure · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRNo studies
NMDA receptor antagonists vs no treatment, placebo, oral sweet solution, or non‐pharmacological intervention
Episodes of bradycardia, defined as a fall in heart rate of more than 30% below the baseline or less than 100 beats per minute for 10 seconds or longer, occurring during the procedure · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRNo studies
NMDA receptor antagonists vs no treatment, placebo, oral sweet solution, or non‐pharmacological intervention
Episodes of apnea (mean rates of apnea), occurring during the procedure · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRNo studies
NMDA receptor antagonists vs no treatment, placebo, oral sweet solution, or non‐pharmacological intervention
Hypotension requiring medical therapy (vasopressors or fluid boluses), occurring during the procedure · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain score · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRVery low
Intervention NR
Pain score assessed up to 10 minutes after the procedure · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Episodes of bradycardia, defined as a fall in heart rate of more than 30% below the baseline or less than 100 beats per minute for 10 seconds or longer, occurring during the procedure · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Episodes of apnea (mean rates of apnea), occurring during the procedure. No. of participants: 124(1 RCT) · Procedural pain in neonates
Non‐opioid analgesics for procedural pain in neonates (2023) · Cochrane
RR 0.31 [0.08, 1.18]NRVery low
Caffeine vs other methylxanthines
All‐cause mortality prior to hospital discharge№ of participants: 396(2 RCTs) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
RR 1.12 [0.68, 1.84]NRLow
Caffeine vs other methylxanthines
f) Hearing impairment (requiring amplification) № of participants: 6(1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRVery low
Caffeine vs other methylxanthines
Bronchopulmonary dysplasia/chronic lung disease: defined as 28 days of oxygen exposure at 36 weeks' postmenstrual age№ of participants: 481(3 RCTs) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
RR 1.4 [0.92, 2.11]NRLow
Caffeine vs other methylxanthines
Side effects (tachycardia, agitation, or feed intolerance) leading to a reduction in dose or withholding of methylxanthines№ of participants: 30(1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
RR 0.17 [0.02, 1.32]NRVery low
Caffeine vs other methylxanthines
Duration of hospital stay (days) № of participants: 240 (1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRLow
Caffeine vs other methylxanthines
Seizures (clinically diagnosed) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Caffeine vs other methylxanthines
Moderate to severe neurodevelopmental disability at 18 to 26 months · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Caffeine vs other methylxanthines
a) Cerebral palsy · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Caffeine vs other methylxanthines
b) Gross motor disability defined as ≥ level 2 according to the GMFCS · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Caffeine vs other methylxanthines
c) Developmental delay more than two SDs below population mean on a standardized test of development: cognitive delay № of participants: 79(1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
RR 0.17 [0.02, 1.37]NRVery low
Caffeine vs other methylxanthines
c) Developmental delay more than two SDs below population mean on a standardized test of development: language delay № of participants: 79(1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
RR 0.76 [0.37, 1.58]NRVery low
Caffeine vs other methylxanthines
c) Developmental delay more than two SDs below population mean on a standardized test of development: motor delay № of participants: 79(1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
RR 0.5 [0.13, 1.96]NRVery low
Caffeine vs other methylxanthines
d) Mental development IQ > 2 SD below the mean · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Caffeine vs other methylxanthines
e) Visual impairment (vision < 6/60 in both eyes) № of participants: 21(1 RCT) · preterm infants
Caffeine versus other methylxanthines for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRVery low
Lateral decubitus position vs sitting position
Successful lumbar puncture procedure at the first attempt, with < 10000 red blood cells/mm3№ of participants: 1249(2 RCTs) · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
RR 0.99 [0.88, 1.12]NRModerate
Lateral decubitus position vs prone position
Episodes of bradycardia, defined as a fall in heart rate of more than 30% below the baseline or less than 100 beats per minute for 10 seconds or longer— not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs prone position
Time to perform the lumbar puncture—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs prone position
Episodes of desaturation, defined as a decrease of SpO2 to less than 80%, with no minimum duration specified—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs prone position
Apnea: number of episodes (defined as interruption of breathing for more than 20 seconds) during the procedure—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs prone position
Apnea: number of infants with 1 or more episodes (defined as interruption of breathing for more than 20 seconds) during the procedure—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs sitting position
Total number of lumbar puncture attempts (successful or unsuccessful)—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs sitting position
Episodes of bradycardia№ of participants: 1279(3 RCTs) · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
RR 1.72 [1.08, 2.76]NRModerate
Lateral decubitus position vs sitting position
Time to perform the lumbar puncture№ of participants: 1102(2 RCTs) · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
MD 2NRHigh
Lateral decubitus position vs sitting position
Episodes of desaturation (decrease of SpO2 to less than 80%)№ of participants: 1249(2 RCTs) · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
RR 2.1 [1.42, 3.08]NRModerate
Lateral decubitus position vs sitting position
Apnea: number of episodes (interruption of breathing for more than 20 seconds) during the procedure№ of participants: 197(2 RCTs) · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
RR 0NRLow
Lateral decubitus position vs sitting position
Apnea: number of infants with 1 or more episodes (defined as interruption of breathing for more than 20 seconds) during the procedure—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Lateral decubitus position vs prone position
Successful lumbar puncture procedure at the first attempt№ of participants: 171(1 RCT) · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
RR 0.75 [0.63, 0.9]NRLow
Lateral decubitus position vs prone position
Total number of lumbar puncture attempts—not reported · lumbar puncture in newborn infants
Positioning for lumbar puncture in newborn infants (2023) · Cochrane
no estimate extractedNRNo studies
Topical anesthetics vs placebo or no intervention
Successful LP on first attempt № of LPs: 100(1 quasi‐RCT) · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
no estimate extractedNRVery low
Topical anesthetics vs placebo or no intervention
Total number of LP attempts № of LPs: 100(1 quasi‐RCT) · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
no estimate extractedNRVery low
Topical anesthetics vs placebo or no intervention
Episodes of bradycardia, defined as a fall in heart rate to > 30% below the baseline or < 100 beats per minute for ≥ 10 seconds № of LPs: 100(1 quasi‐RCT) · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
no estimate extractedNRVery low
Topical anesthetics vs placebo or no intervention
NFCS pain score during the procedure№ of infants: 112(2 RCTs) Score · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
no estimate extractedNRLow
Topical anesthetics vs placebo or no intervention
Episodes of desaturation, defined as a decrease in arterial SpO2 to < 80% (no minimum duration specified) № of LPs: 100(1 quasi‐RCT) · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
no estimate extractedNRVery low
Topical anesthetics vs placebo or no intervention
Apnea: number of episodesduring the procedure · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
no estimate extractedNRNo studies
Topical anesthetics vs placebo or no intervention
Apnea: occurrence of one or more episodes№ of LPs: 100(1 quasi‐RCT) · newborn infants undergoing lumbar puncture
Pharmacological interventions for the management of pain and discomfort during lumbar puncture in newborn… (2023) · Cochrane
RR 3.24 [0.14, 77.79]NRVery low
Intervention NR
Necrotising enterocolitis prior to hospital discharge · very preterm (< 32 weeks' gestation) or very low birth weight (< 1500 g) infants
Delayed introduction of progressive enteral feeds to prevent necrotising enterocolitis in very low birth… (2022) · Cochrane
RR 0.8113 studies · 1507 participantsLow
Intervention NR
Mortality prior to hospital discharge · very preterm (< 32 weeks' gestation) or very low birth weight (< 1500 g) infants
Delayed introduction of progressive enteral feeds to prevent necrotising enterocolitis in very low birth… (2022) · Cochrane
RR 0.97 [0.7, 1.36]12 studies · 1399 participantsLow
Intervention NR
Feed intolerance prior to hospital discharge · very preterm (< 32 weeks' gestation) or very low birth weight (< 1500 g) infants
Delayed introduction of progressive enteral feeds to prevent necrotising enterocolitis in very low birth… (2022) · Cochrane
RR 0.81 [0.68, 0.97]6 studies · 581 participantsLow