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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)

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
Vitamin K antagonists vs heparin
Bleeding ‐ clinically indicated non‐major Treatment duration 28 ‐ 42 days · people requiring prevention of venous thromboembolism following total hip or knee replacement or hip fracture repair
Anticoagulants (extended duration) for prevention of venous thromboembolism following total hip or knee… (2016) · Cochrane
no estimate extractedNRNo studies
Heparin vs placebo
Clinically relevant non‐major bleeding Treatment duration 28 ‐ 42 days · people requiring prevention of venous thromboembolism following total hip or knee replacement or hip fracture repair
Anticoagulants (extended duration) for prevention of venous thromboembolism following total hip or knee… (2016) · Cochrane
no estimate extractedNRNo studies
Active cancer therapy combined with TCM vs active cancer therapy
All‐cause mortality ‐ not reported · patients with oesophageal cancer
Chinese herbal medicine for oesophageal cancer (2016) · Cochrane
no estimate extractedNRNo studies
Active cancer therapy combined with TCM vs active cancer therapy
Median survival times ‐ not reported · patients with oesophageal cancer
Chinese herbal medicine for oesophageal cancer (2016) · Cochrane
no estimate extractedNRNo studies
Active cancer therapy combined with TCM vs active cancer therapy
Time to progression ‐ not reported · patients with oesophageal cancer
Chinese herbal medicine for oesophageal cancer (2016) · Cochrane
no estimate extractedNRNo studies
Patching vs no patching
Quality of life · participants with corneal abrasion
Patching for corneal abrasion (2016) · Cochrane
no estimate extractedNRNo studies
Low‐dose aspirin vs placebo or no treatment
Other adverse events · Women with subfertility
Aspirin for in vitro fertilisation (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Length of time with fever ‐ not reported · treating infections in people with neutropenia or neutrophil dysfunction
Granulocyte transfusions for treating infections in people with neutropenia or neutrophil dysfunction (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Number of days on therapeutic antibiotics ‐ not reported · treating infections in people with neutropenia or neutrophil dysfunction
Granulocyte transfusions for treating infections in people with neutropenia or neutrophil dysfunction (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Number of adverse events requiring discontinuation of treatment ‐ not reported · treating infections in people with neutropenia or neutrophil dysfunction
Granulocyte transfusions for treating infections in people with neutropenia or neutrophil dysfunction (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Quality of life ‐ not reported · treating infections in people with neutropenia or neutrophil dysfunction
Granulocyte transfusions for treating infections in people with neutropenia or neutrophil dysfunction (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Severe adverse effects (G3/4) outcomes · Women with newly diagnosed epithelial ovarian cancer
Intraperitoneal chemotherapy for the initial management of primary epithelial ovarian cancer (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Change in nerve pain and in nerve tenderness at 1 year ‐ not reported · people with nerve damage (6 to 24 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Limitations in activities of daily living at 1 year ‐ not reported · people with nerve damage (6 to 24 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Limitations in participation at 1 year ‐ not reported · people with nerve damage (6 to 24 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Improvement in motor nerve function at 1 year ‐ not reported · people with nerve damage (< 6 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Change in nerve pain and in nerve tenderness at 1 year ‐ not reported · people with nerve damage (< 6 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Limitations in activities of daily living at 1 year ‐ not reported · people with nerve damage (< 6 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Corticosteroids vs placebo
Limitations in participation at 1 year ‐ not reported · people with nerve damage (< 6 months' duration) in leprosy
Corticosteroids for treating nerve damage in leprosy (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Radiographic evaluation
Aquatic exercise for the treatment of knee and hip osteoarthritis (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Short term serious adverse effects from trials
Aquatic exercise for the treatment of knee and hip osteoarthritis (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Long term adverse effects or toxicity from observational studies
Aquatic exercise for the treatment of knee and hip osteoarthritis (2016) · Cochrane
no estimate extractedNRNo studies
CSII vs MDI: infant outcomes
Adiposity (infant) · infants of pregnant women with diabetes
Continuous subcutaneous insulin infusion versus multiple daily injections of insulin for pregnant women with… (2016) · Cochrane
no estimate extractedNRNo studies
CSII vs MDI: infant outcomes
Neurosensory disability · infants of pregnant women with diabetes
Continuous subcutaneous insulin infusion versus multiple daily injections of insulin for pregnant women with… (2016) · Cochrane
no estimate extractedNRNo studies
CSII vs MDI: infant outcomes
Large‐for‐gestational age · infants of pregnant women with diabetes
Continuous subcutaneous insulin infusion versus multiple daily injections of insulin for pregnant women with… (2016) · Cochrane
no estimate extractedNRNo studies
CSII vs MDI: infant outcomes
Neonatal hypoglycaemia · infants of pregnant women with diabetes
Continuous subcutaneous insulin infusion versus multiple daily injections of insulin for pregnant women with… (2016) · Cochrane
no estimate extractedNRNo studies
Prophylactic cholinesterase inhibitor vs placebo
Return to independent living ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Prophylactic cholinesterase inhibitor vs placebo
Inpatient mortality ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Return to independent living ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Inpatient mortality ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Return to independent living ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
Duration of delirium ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
Severity of delirium ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
Return to independent living ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Bispectral index (BIS)‐guided anaesthesia vs BIS‐blinded anaesthesia/clinical judgement
In‐hospital mortality ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Prophylactic cholinesterase inhibitor vs placebo
Duration of delirium ‐ not measured
Interventions for preventing delirium in hospitalised non‐ICU patients (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Proportion of maternal participants with desaturation1 · low‐risk term pregnant women undergoing elective caesarean section under regional anaesthesia
Supplemental oxygen for caesarean section during regional anaesthesia (2016) · Cochrane
no estimate extractedNRNo studies
Chromoscopy vs conventional colonoscopy
Adverse events · people undergoing colonoscopy for the detection of polyps
Chromoscopy versus conventional endoscopy for the detection of polyps in the colon and rectum (2016) · Cochrane
no estimate extractedNRNo studies
Non‐exclusive breastfeeding (water or glucose water) vs exclusive breastfeeding
Confidence in breastfeeding (maternal or of those influencing the mother) · healthy breastfeeding full‐term infants
Early additional food and fluids for healthy breastfed full‐term infants (2016) · Cochrane
no estimate extractedNRNo studies
Non‐exclusive breastfeeding (foods) vs exclusive breastfeeding
Duration of breastfeeding (at different time points) · healthy breastfeeding full‐term infants
Early additional food and fluids for healthy breastfed full‐term infants (2016) · Cochrane
no estimate extractedNRNo studies
Non‐exclusive breastfeeding (foods) vs exclusive breastfeeding
Confidence in breastfeeding (maternal or of those influencing the mother) · healthy breastfeeding full‐term infants
Early additional food and fluids for healthy breastfed full‐term infants (2016) · Cochrane
no estimate extractedNRNo studies
Non‐exclusive breastfeeding (artificial milk) vs exclusive breastfeeding
Weight change · healthy breastfeeding full‐term infants
Early additional food and fluids for healthy breastfed full‐term infants (2016) · Cochrane
no estimate extractedNRNo studies
Oral iron vs placebo or no treatment
Subgroup · children in malaria‐endemic areas
Oral iron supplements for children in malaria‐endemic areas (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Subgroup · children in malaria‐endemic areas
Oral iron supplements for children in malaria‐endemic areas (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Duration of any breastfeeding · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Proportion of women exclusive breastfeeding at 6 months · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Maternal level of confidence in breastfeeding · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Neonatal infection · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Changes in globotriaosylceramide (Gb3) concentration in plasma and tissue · Anderson‐Fabry disease
Enzyme replacement therapy for Anderson‐Fabry disease (2016) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Pain Acroparaesthesia and Fabry crises · Anderson‐Fabry disease
Enzyme replacement therapy for Anderson‐Fabry disease (2016) · Cochrane
no estimate extractedNRNo studies