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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
Intervention NR
Poor neurological outcome by 28 days' postnatal age · neonates requiring intubation and ventilation
Intravenous midazolam infusion for sedation of infants in the neonatal intensive care unit (2017) · Cochrane
RR 7.64 [1.02, 57.21]1 study · 46 participantsModerate
Inhaled steroids vs systemic steroids
Death or BPD at 36 weeks' postmenstrual age · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 1.04 [0.86, 1.26]1 study · 292 participantsModerate
Inhaled steroids vs systemic steroids
Diastolic blood pressure > 95th percentile at 7 years · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
no estimate extracted1 study · 69 participantsModerate
Inhaled steroids vs systemic steroids
Ever diagnosed as asthmatic by 7 years · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 0.87 [0.55, 1.39]1 study · 73 participantsModerate
Inhaled steroids vs systemic steroids
Death or BPD at 36 weeks' postmenstrual age · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 0.94 [0.83, 1.05]1 study · 78 participantsLow
Inhaled steroids vs systemic steroids
BPD at 36 weeks' postmenstrual age · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 1.08 [0.88, 1.32]3 studies · 429 participantsLow
Inhaled steroids vs systemic steroids
Hyperglycaemia · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 0.86 [0.61, 1.22]3 studies · 429 participantsLow
Inhaled steroids vs systemic steroids
Hypertension · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 0.863 studies · 429 participantsLow
Inhaled steroids vs systemic steroids
General conceptual ability (GCA) score at 7 years The test has a standardisation mean of 100 and SD of 15 · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
no estimate extracted1 study · 74 participantsModerate
Inhaled steroids vs systemic steroids
Moderate/severe disability at 7 years · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 1.4 [0.49, 4.01]1 study · 74 participantsModerate
Inhaled steroids vs systemic steroids
Death or moderate/severe disability at 7 years · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 1.01 [0.65, 1.58]1 study · 107 participantsModerate
Inhaled steroids vs systemic steroids
Systolic blood pressure > 95th percentile at 7 years · Neonates with developing BPD
Inhaled versus systemic corticosteroids for the treatment of bronchopulmonary dysplasia in ventilated very… (2017) · Cochrane
RR 0.55 [0.25, 1.23]1 study · 70 participantsModerate
Inhaled steroids vs systemic corticosteroids
Death or BPD at 36 weeks' postmenstrual age among all randomised · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.09 [0.88, 1.35]1 study · 278 participantsModerate
Intervention NR
BPD at 28 days · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.14 [0.96, 1.34]2 studies · 233 participantsLow
Intervention NR
Ever diagnosed as asthmatic by 7 years of age · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 0.42 [0.19, 0.94]1 study · 48 participantsModerate
Inhaled steroids vs systemic corticosteroids
Death or BPD at 28 days · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.05 [0.93, 1.2]2 studies · 294 participantsLow
Inhaled steroids vs systemic corticosteroids
BPD at 36 weeks' postmenstrual age · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.45 [0.99, 2.11]1 study · 278 participantsModerate
Inhaled steroids vs systemic corticosteroids
BPD at 28 days · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.21 [0.98, 1.48]2 studies · 294 participantsLow
Intervention NR
Duration of mechanical ventilation (days) · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
no estimate extracted2 studies · 294 participantsModerate
Intervention NR
Duration of supplemental oxygen (days) · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
no estimate extracted2 studies · 294 participantsModerate
Intervention NR
Hyperglycaemia · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 0.52 [0.39, 0.71]1 study · 278 participantsModerate
Intervention NR
Patent ductus arteriosus · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.64 [1.23, 2.17]1 study · 278 participantsModerate
Intervention NR
BPD at 36 weeks' postmenstrual age · Preterm neonates with respiratory distress
Inhaled versus systemic corticosteroids for preventing bronchopulmonary dysplasia in ventilated very low… (2017) · Cochrane
RR 1.34 [0.94, 1.9]1 study · 206 participantsModerate
Intervention NR
Mortality or CLD at 28/30 days · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
RR 1.05 [0.73, 1.52]2 studies · 64 participantsLow
Intervention NR
Mortality to 28 days · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
RR 1.31 [0.52, 3.29]2 studies · 64 participantsVery low
Intervention NR
CLD at 28 days · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
RR 0.93 [0.53, 1.64]2 studies · 64 participantsLow
Intervention NR
CLD at 36 weeks' PMA · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
RR 1.25 [0.43, 3.63]1 study · 26 participantsLow
Intervention NR
CLD among survivors to 28 days · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
RR 0.97 [0.58, 1.63]2 studies · 50 participantsLow
Intervention NR
CLD among survivors to 36 weeks' PMA · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
RR 1.04 [0.38, 2.87]1 study · 22 participantsLow
Intervention NR
Days on mechanical ventilation · preterm infants
Cromolyn sodium for the prevention of chronic lung disease in preterm infants (2017) · Cochrane
no estimate extracted1 study · 28 participantsLow
Feed thickener vs control
Number of episodes of regurgitation or vomiting per day · Formula‐fed healthy term infants up to 6 months of age with gastro‐oesophageal reflux
Feed thickener for infants up to six months of age with gastro‐oesophageal reflux (2017) · Cochrane
no estimate extracted6 studies · 442 participantsModerate
Feed thickener vs control
Proportion of infants without regurgitation or vomiting at the end of intervention period (asymptomatic infants) · Formula‐fed healthy term infants up to 6 months of age with gastro‐oesophageal reflux
Feed thickener for infants up to six months of age with gastro‐oesophageal reflux (2017) · Cochrane
RR 2.5 [1.38, 4.51]2 studies · 186 participantsLow
Feed thickener vs control
Reflux index (percentage of time pH < 4) · Formula‐fed healthy term infants up to 6 months of age with gastro‐oesophageal reflux
Feed thickener for infants up to six months of age with gastro‐oesophageal reflux (2017) · Cochrane
no estimate extracted2 studies · 116 participantsLow
Feed thickener vs control
Number of reflux episodes lasting > 5 minutes · Formula‐fed healthy term infants up to 6 months of age with gastro‐oesophageal reflux
Feed thickener for infants up to six months of age with gastro‐oesophageal reflux (2017) · Cochrane
no estimate extracted2 studies · 116 participantsLow
Feed thickener vs control
Duration of longest reflux episode · Formula‐fed healthy term infants up to 6 months of age with gastro‐oesophageal reflux
Feed thickener for infants up to six months of age with gastro‐oesophageal reflux (2017) · Cochrane
no estimate extracted2 studies · 116 participantsLow
Feed thickener vs control
Diarrhoea · Formula‐fed healthy term infants up to 6 months of age with gastro‐oesophageal reflux
Feed thickener for infants up to six months of age with gastro‐oesophageal reflux (2017) · Cochrane
no estimate extracted6 studies · 511 participantsLow
Calcium supplementation vs no calcium supplementation
Weight (g) ‐ weight at 6 weeks · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extracted1 study · 40 participantsLow
Calcium supplementation vs no calcium supplementation
Length (cm) ‐ length at 6 weeks · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extracted1 study · 40 participantsLow
Calcium supplementation vs no calcium supplementation
Head circumference (cm) ‐ head circumference at 6 weeks · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extracted1 study · 40 participantsLow
Calcium supplementation vs no calcium supplementation
Bone fracture (neonatal) ‐ not measured · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extractedNRNo studies
Calcium supplementation vs no calcium supplementation
Growth (childhood/adulthood) ‐ not measured · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extractedNRNo studies
Calcium supplementation vs no calcium supplementation
Bone mineral density (infant/childhood/adulthood) ‐ not measured · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extractedNRNo studies
Calcium supplementation vs no calcium supplementation
Fracture (childhood/adulthood) ‐ not measured · preterm hospitalised infants
Calcium and phosphorus supplementation of human milk for preterm infants (2017) · Cochrane
no estimate extractedNRNo studies
Volume‐targeted vs pressure‐limited ventilation: main findings
Death before discharge from hospital · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
RR 0.75 [0.53, 1.07]11 studies · 771 participantsLow
Volume‐targeted vs pressure‐limited ventilation: additional findings
Addition of neuromuscular paralysis where previously not paralysed · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
RR 0.32 [0.07, 1.4]2 studies · 75 participantsLow
Volume‐targeted vs pressure‐limited ventilation: additional findings
Duration of positive pressure ventilation (log data) · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
no estimate extracted5 studies · 381 participantsLow
Volume‐targeted vs pressure‐limited ventilation: additional findings
Inspired oxygen concentration % (study definition) · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
no estimate extracted7 studies · 324 participantsModerate
Volume‐targeted vs pressure‐limited ventilation: additional findings
Any pH < 7.25 · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
RR 0.8 [0.52, 1.23]3 studies · 98 participantsLow
Volume‐targeted vs pressure‐limited ventilation: additional findings
Hypocarbia pCO2 < 35 mmHg/4.7 kPa · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
RR 0.49 [0.33, 0.72]3 studies · 98 participantsModerate
Volume‐targeted vs pressure‐limited ventilation: additional findings
Respiratory acidosis pH < 7.25 and pCO2 > 60 mmHg/8 kPa · neonates up to 44 weeks' postmenstrual age
Volume‐targeted versus pressure‐limited ventilation in neonates (2017) · Cochrane
RR 0.93 [0.51, 1.7]3 studies · 98 participantsLow