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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. Every word you type has to appear somewhere in the question, and the closest matches are ranked first.

Limit to evidence status or GRADE (optional)

75,239 questions in 5,342 reviews

current versions
No studies 15,213 · 20.2%Ungraded 10,323 · 13.7%Very low 17,528 · 23.3%Low 17,951 · 23.9%Moderate 11,190 · 14.9%High 3,034 · 4%

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
nHFV vs nIPPV used
Death or chronic lung disease · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs nIPPV used
Intraventricular haemorrhage, Papile grade 3/4 · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted1 study · 36 participantsVery low
nHFV vs nIPPV used
Neurodevelopmental disability · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs HFNC
Mortality before hospital discharge · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted1 study · 37 participantsVery low
nHFV vs invasive respiratory therapy
Endotracheal intubation or reintubation To discharge · preterm infants with respiratory distress
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs HFNC
Endotracheal intubation or reintubation To discharge · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 2.94 [0.65, 13.27]1 study · 37 participantsVery low
nHFV vs HFNC
Chronic lung disease · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1.18 [0.46, 2.98]1 study · 37 participantsVery low
nHFV vs HFNC
Death or chronic lung disease · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs HFNC
Intraventricular haemorrhage, Papile grade 3/4 · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted1 study · 37 participantsVery low
nHFV vs HFNC
Neurodevelopmental disability · preterm infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs nCPAP
Mortality before hospital discharge · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.92 [0.52, 1.64]6 studies · 1427 participantsModerate
nHFV vs nCPAP
Endotracheal reintubation To discharge · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.42 [0.35, 0.51]11 studies · 1897 participantsLow
nHFV vs nCPAP
Chronic lung disease · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.78 [0.67, 0.91]10 studies · 1829 participantsLow
nHFV vs nCPAP
Death or chronic lung disease · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.9 [0.77, 1.06]2 studies · 966 participantsModerate
nHFV vs nCPAP
Intraventricular haemorrhage, Papile grade 3/4 · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.8 [0.57, 1.13]3 studies · 1117 participantsModerate
nHFV vs invasive respiratory therapy
Chronic lung disease · preterm infants with respiratory distress
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.38 [0.09, 1.59]2 studies · 180 participantsVery low
nHFV vs nCPAP
Neurodevelopmental disability · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.92 [0.37, 2.29]1 study · 74 participantsVery low
nHFV vs nIPPV
Mortality before hospital discharge · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1.83 [0.7, 4.79]2 studies · 984 participantsLow
nHFV vs nIPPV
Endotracheal reintubation To discharge · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.69 [0.54, 0.89]6 studies · 1364 participantsModerate
nHFV vs nIPPV
Chronic lung disease · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.88 [0.75, 1.04]4 studies · 1236 participantsModerate
nHFV vs nIPPV
Death or chronic lung disease · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.92 [0.79, 1.08]3 studies · 1070 participantsModerate
nHFV vs nIPPV
Intraventricular haemorrhage, Papile grade 3/4 · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.78 [0.55, 1.1]4 studies · 1162 participantsModerate
nHFV vs nIPPV
Neurodevelopmental disability · ventilated preterm infants with planned extubation
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.88 [0.35, 2.16]1 study · 72 participantsLow
nHFV vs nIPPV following failure of initial non‐invasive respiratory support
Mortality before hospital discharge · ventilated preterm infants with failure of initial non‐invasive respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1.44 [0.1, 21.33]1 study · 39 participantsLow
nHFV vs nIPPV following failure of initial non‐invasive respiratory support
Endotracheal intubation To discharge · ventilated preterm infants with failure of initial non‐invasive respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1.23 [0.51, 2.98]1 study · 39 participantsVery low
nHFV vs nIPPV following failure of initial non‐invasive respiratory support
Chronic lung disease · ventilated preterm infants with failure of initial non‐invasive respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1.01 [0.7, 1.47]1 study · 39 participantsLow
nHFV vs invasive respiratory therapy
Death or chronic lung disease · preterm infants with respiratory distress
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs nIPPV following failure of initial non‐invasive respiratory support
Death or chronic lung disease · ventilated preterm infants with failure of initial non‐invasive respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs nIPPV following failure of initial non‐invasive respiratory support
Intraventricular haemorrhage, Papile grade 3/4 · ventilated preterm infants with failure of initial non‐invasive respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.47 [0.02, 10.87]1 study · 39 participantsLow
nHFV vs nIPPV following failure of initial non‐invasive respiratory support
Neurodevelopmental disability · ventilated preterm infants with failure of initial non‐invasive respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs invasive respiratory therapy
Intraventricular haemorrhage, Papile grade 3/4 · preterm infants with respiratory distress
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs invasive respiratory therapy
Neurodevelopmental disability · preterm infants with respiratory distress
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
nHFV vs nCPAP used
Mortality before hospital discharge · newborn (term* and preterm) infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1 [0.41, 2.41]4 studies · 531 participantsVery low
nHFV vs nCPAP used
Endotracheal intubation To discharge · newborn (term* and preterm) infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 0.52 [0.33, 0.82]5 studies · 571 participantsLow
nHFV vs nCPAP used
Chronic lung disease · newborn (term* and preterm) infants with respiratory distress for initial respiratory support
Non‐invasive high‐frequency ventilation in newborn infants with respiratory distress (2024) · Cochrane
RR 1.35 [0.8, 2.27]4 studies · 481 participantsLow
Alpha‐lipoic acid vs placebo
Change in neuropathy symptoms · people with DPN
Alpha‐lipoic acid for diabetic peripheral neuropathy (2024) · Cochrane
no estimate extracted1 study · 330 participantsModerate
Alpha‐lipoic acid vs placebo
Change in impairment · people with DPN
Alpha‐lipoic acid for diabetic peripheral neuropathy (2024) · Cochrane
no estimate extracted1 study · 245 participantsLow
Alpha‐lipoic acid vs placebo
Change in any validated quality of life score · people with DPN
Alpha‐lipoic acid for diabetic peripheral neuropathy (2024) · Cochrane
no estimate extractedNRNo studies
Alpha‐lipoic acid vs placebo
Complications of DPN · people with DPN
Alpha‐lipoic acid for diabetic peripheral neuropathy (2024) · Cochrane
no estimate extractedNRNo studies
Alpha‐lipoic acid vs placebo
Adverse events leading to cessation of treatment · people with DPN
Alpha‐lipoic acid for diabetic peripheral neuropathy (2024) · Cochrane
RR 1.48 [0.5, 4.35]3 studies · 1090 participantsModerate
Standard polyurethane plus tissue adhesive vs standard polyurethane
Arterial catheter failure assessed during catheter dwell · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 0.44 [0.2, 0.98]2 studies · 165 participantsVery low
Bordered polyurethane vs standard polyurethane
Adverse events assessed during catheter dwell · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 0.33 [0.01, 7.87]1 study · 60 participantsVery low
Standard polyurethane plus sutureless securement devices vs standard polyurethane
Arterial catheter failureassessed during catheter dwell · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 0.78 [0.4, 1.52]2 studies · 157 participantsVery low
Standard polyurethane plus sutureless securement devices vs standard polyurethane
Incidence of catheter‐related bloodstream infection assessed during catheter dwell or 48 hours after removal · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
no estimate extracted2 studies · 157 participantsVery low
Standard polyurethane plus sutureless securement devices vs standard polyurethane
Dislodgement assessed during catheter dwell · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 0.14 [0.01, 2.57]2 studies · 157 participantsVery low
Standard polyurethane plus sutureless securement devices vs standard polyurethane
Occlusion assessed during catheter dwell · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 1.94 [0.5, 7.48]2 studies · 157 participantsVery low
Standard polyurethane plus sutureless securement devices vs standard polyurethane
Adverse events assessed during catheter dwell and on product removal · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 1.94 [0.19, 20.24]2 studies · 157 participantsVery low
Integrated securement dressings vs standard polyurethane
Arterial catheter failureassessed during catheter dwell or 48 hours after removal · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 1.96 [0.8, 4.84]1 study · 105 participantsLow
Integrated securement dressings vs standard polyurethane
Incidence of catheter‐related bloodstream infectionassessed during catheter dwell or 48 hours after removal · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
no estimate extracted1 study · 105 participantsLow
Integrated securement dressings vs standard polyurethane
Dislodgement assessed during catheter dwell · people with arterial catheter dressing and securement
Dressings and securement devices to prevent complications for peripheral arterial catheters (2024) · Cochrane
RR 0.33 [0.04, 3.04]1 study · 105 participantsLow