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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)

15,213 questions in 2,394 reviews

current versions
No studies 15,213 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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
Motor imaging vs usual care
Phantom limb pain frequency · people with transtibial amputation due to peripheral arterial disease or diabetes
Interventions for motor rehabilitation in people with transtibial amputation due to peripheral arterial… (2023) · Cochrane
no estimate extractedNRNo studies
Gait training protocol focused on impairment level vs gait training protocol focused on task level
Mortality – all cause · people with transtibial amputation due to peripheral arterial disease or diabetes
Interventions for motor rehabilitation in people with transtibial amputation due to peripheral arterial… (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Intralesional classical immunosuppresants (betamethasone or triamcinolone) vs placebo
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Intralesional classical immunosuppresants (betamethasone or triamcinolone) vs placebo
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Subcutaneous biologics (dupilumab) vs placebo
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Subcutaneous biologics (dupilumab) vs placebo
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Oral small molecule inhibitors (apremilast or baricitinib) vs placebo
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Oral small molecule inhibitors (ruxolitinib) vs oral small molecule inhibitors (tofacitinib)
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Oral small molecule inhibitors (ruxolitinib) vs oral small molecule inhibitors (tofacitinib)
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Topical small molecule inhibitors (ruxolitinib) vs placebo
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Topical small molecule inhibitors (ruxolitinib) vs placebo
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo
Incidence of serious adverse events ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs placebo
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)
Incidence of serious adverse events ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone or squaric acid dibutil ester) vs hair growth stimulants (minoxidil)
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone) + hair growth stimulants (minoxidil) vs contact immunotherapy (diphencyprone)
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Oral classical immunosuppressants (prednisolone or cyclosporine) vs placebo
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Contact immunotherapy (diphencyprone) + hair growth stimulants (minoxidil) vs contact immunotherapy (diphencyprone)
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Topical hair growth stimulants (minoxidil) vs placebo
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Topical hair growth stimulants (minoxidil) vs placebo
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Other therapies (cryotherapy) vs other therapies (fractional CO2 laser)
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Other therapies (cryotherapy) vs other therapies (fractional CO2 laser)
Long‐term hair regrowth ≥ 75% ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Oral classical immunosuppressants (betamethasone) vs oral classical immunosuppressants (azathioprine, methotrexate, prednisolone)
Health‐related quality of life ‐ not reported · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings table ‐ Oral classical immunosuppressants (betamethasone) vs oral classical immunosuppressants (azathioprine, methotrexate, prednisolone)
Long‐term hair regrowth ≥ 75% (greater than 26 weeks of · adults with alopecia areata
Treatments for alopecia areata: a network meta‐analysis (2023) · Cochrane
no estimate extractedNRNo studies
Digital technology (TIM) vs standard treatment (TBM)
Treatment burden · children aged 5 to 16 years
Digital technology for monitoring adherence to inhaled therapies in people with cystic fibrosis (2023) · Cochrane
no estimate extractedNRNo studies
Digital technology (TIM) vs standard treatment (TBM)
QoL · children aged 5 to 16 years
Digital technology for monitoring adherence to inhaled therapies in people with cystic fibrosis (2023) · Cochrane
no estimate extractedNRNo studies
Digital technology (TIM) vs standard treatment (TBM)
Number of pulmonary exacerbations · children aged 5 to 16 years
Digital technology for monitoring adherence to inhaled therapies in people with cystic fibrosis (2023) · Cochrane
no estimate extractedNRNo studies
Standard‐protein formula vs low‐protein formula
Overweight · healthy, full‐term (37 to 42 weeks), formula‐fed infants
Higher versus lower protein intake in formula‐fed term infants (2023) · Cochrane
no estimate extractedNRNo studies
Standard‐protein formula vs low‐protein formula
Obesity · healthy, full‐term (37 to 42 weeks), formula‐fed infants
Higher versus lower protein intake in formula‐fed term infants (2023) · Cochrane
no estimate extractedNRNo studies
Standard‐protein formula vs low‐protein formula
All‐cause mortality · healthy, full‐term (37 to 42 weeks), formula‐fed infants
Higher versus lower protein intake in formula‐fed term infants (2023) · Cochrane
no estimate extractedNRNo studies
High‐protein formula vs standard‐protein formula
All‐cause mortality · healthy, full‐term, formula‐fed infants
Higher versus lower protein intake in formula‐fed term infants (2023) · Cochrane
no estimate extractedNRNo studies
Class I and/or III antiarrhythmics vs control
Outcomes at > 3 to 6 months after ablation · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class I antiarrhythmics vs control
Adverse events: thromboembolic events · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class I antiarrhythmics vs control
Adverse events: myocardial infarction · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class I antiarrhythmics vs control
Adverse events: new diagnosis of heart failure · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class I antiarrhythmics vs control
All‐cause mortality · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class III antiarrhythmics vs control
Outcomes at > 3 to 6 months after ablation · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class III antiarrhythmics vs control
Adverse events: myocardial infarction · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class III antiarrhythmics vs control
Adverse events: new diagnosis of heart failure · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class I and/or III antiarrhythmics vs control
Adverse events: new diagnosis of heart failure · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Class I antiarrhythmics vs control
Outcomes at > 3 to 6 months after ablation · Human trial participants undergoing ablation for atrial fibrillation
Oral Class I and III antiarrhythmic drugs for maintaining sinus rhythm after catheter ablation of atrial… (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings: psychological interventions vs an active comparator
Treatment‐related adverse events Anxiety · adults (aged 16 years and over) with CF
Psychological interventions for improving adherence to inhaled therapies in people with cystic fibrosis (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings: psychological interventions vs an active comparator
Treatment‐related adverse events Depression · adults (aged 16 years and over) with CF
Psychological interventions for improving adherence to inhaled therapies in people with cystic fibrosis (2023) · Cochrane
no estimate extractedNRNo studies
Single foetal haemoglobin inducer at any dose or duration vs usual care or placebo
Frequency of transfusion (transfused volume/year) · people with non‐transfusion‐dependent β‐thalassaemia
Foetal haemoglobin inducers for reducing blood transfusion in non‐transfusion‐dependent beta‐thalassaemias (2023) · Cochrane
no estimate extractedNRNo studies
Single foetal haemoglobin inducer at any dose or duration vs another foetal haemoglobin inducer
QoL · people with non‐transfusion‐dependent β‐thalassaemia
Foetal haemoglobin inducers for reducing blood transfusion in non‐transfusion‐dependent beta‐thalassaemias (2023) · Cochrane
no estimate extractedNRNo studies
One dose or dose regimen of a foetal haemoglobin inducer vs another dose or dose regimen of the same foetal haemoglobin inducer
Frequency of transfusion (transfused volume/ year) · people with non‐transfusion‐dependent β‐thalassaemia
Foetal haemoglobin inducers for reducing blood transfusion in non‐transfusion‐dependent beta‐thalassaemias (2023) · Cochrane
no estimate extractedNRNo studies
One dose or dose regimen of a foetal haemoglobin inducer vs another dose or dose regimen of the same foetal haemoglobin inducer
Transfusion‐free interval (days) · people with non‐transfusion‐dependent β‐thalassaemia
Foetal haemoglobin inducers for reducing blood transfusion in non‐transfusion‐dependent beta‐thalassaemias (2023) · Cochrane
no estimate extractedNRNo studies
One dose or dose regimen of a foetal haemoglobin inducer vs another dose or dose regimen of the same foetal haemoglobin inducer
QoL · people with non‐transfusion‐dependent β‐thalassaemia
Foetal haemoglobin inducers for reducing blood transfusion in non‐transfusion‐dependent beta‐thalassaemias (2023) · Cochrane
no estimate extractedNRNo studies