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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
Back School vs no treatment
Work status Not reported · people with low back pain
Back Schools for chronic non‐specific low back pain (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention vs general population mass media intervention
Any outcome considered an indicator of change · mass media intervention for promoting healthy behaviours
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention for promoting healthy behaviours vs no intervention
Any measure of knowledge and attitude · adult, ethnic minority group: self‐described Americans of African heritage
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention for promoting healthy behaviours vs no intervention
Adverse effects · adult, ethnic minority group: self‐described Americans of African heritage
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention for promoting healthy behaviours vs no intervention
Any outcome considered an adverse effect · adult, ethnic minority group: self‐described Americans of African heritage
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention vs targeted mass media intervention plus personalised content
Adverse effects · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African…
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention vs targeted mass media intervention plus personalised content
Any outcome considered an adverse effect · adult, ethnic minority groups: Latino immigrants, elderly Chinese immigrants, self‐described Americans of African…
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention vs general population mass media intervention
Adverse effects · mass media intervention for promoting healthy behaviours
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Targeted mass media intervention vs general population mass media intervention
Any outcome considered an adverse effect · mass media intervention for promoting healthy behaviours
Targeted mass media interventions promoting healthy behaviours to reduce risk of non‐communicable diseases… (2017) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Incidence of acute exacerbations of bronchiectasis ‐ not reported · people with bronchiectasis
Positive expiratory pressure therapy versus other airway clearance techniques for bronchiectasis (2017) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Duration of acute exacerbation of bronchiectasis ‐ not reported · people with bronchiectasis
Positive expiratory pressure therapy versus other airway clearance techniques for bronchiectasis (2017) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Incidence of hospitalisation ‐ not reported · people with bronchiectasis
Positive expiratory pressure therapy versus other airway clearance techniques for bronchiectasis (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Engagement with services: clinically important change in engagement with services, as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Treatment adherence: clinically important change in treatment adherence, as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Understanding: clinically important change in understanding the nature of illness and its outcome, as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Quality of life: clinically important change in general quality of life or well‐being, as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Mental state: clinically important change in mental state, as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Satisfaction communication of diagnosis: clinically important change (patient or carer's), as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Different communication strategies vs treatment
Adverse effect: clinically important adverse effect of intervention ‐ as defined by individual studies · people with schizophrenia and their carers
Different communication strategies for disclosing a diagnosis of schizophrenia and related disorders (2017) · Cochrane
no estimate extractedNRNo studies
Ranolazine (add‐on therapy) vs placebo
Cardiovascular mortality ‐ not reported · patients with stable angina pectoris
Ranolazine for stable angina pectoris (2017) · Cochrane
no estimate extractedNRNo studies
Ranolazine (add‐on therapy) vs placebo
Non‐cardiovascular mortality ‐ not reported · patients with stable angina pectoris
Ranolazine for stable angina pectoris (2017) · Cochrane
no estimate extractedNRNo studies
Ranolazine (monotherapy) vs placebo
Non‐cardiovascular mortality ‐ not reported · patients with stable angina pectoris
Ranolazine for stable angina pectoris (2017) · Cochrane
no estimate extractedNRNo studies
Whole body vibration plus mixed exercise vs control
Physical function · individuals with fibromyalgia
Whole body vibration exercise training for fibromyalgia (2017) · Cochrane
no estimate extractedNRNo studies
Whole body vibration vs control
Pain intensity · individuals with fibromyalgia
Whole body vibration exercise training for fibromyalgia (2017) · Cochrane
no estimate extractedNRNo studies
Whole body vibration vs control
Fatigue · individuals with fibromyalgia
Whole body vibration exercise training for fibromyalgia (2017) · Cochrane
no estimate extractedNRNo studies
Whole body vibration vs control
Stiffness · individuals with fibromyalgia
Whole body vibration exercise training for fibromyalgia (2017) · Cochrane
no estimate extractedNRNo studies
Whole body vibration vs control
Physical function · individuals with fibromyalgia
Whole body vibration exercise training for fibromyalgia (2017) · Cochrane
no estimate extractedNRNo studies
Any supplement containing iodine vs same supplement without iodine or no treatment/placebo (child outcomes)
Child adverse effect: hyperthyroidism · women during the preconception, pregnancy and postpartum period
Iodine supplementation for women during the preconception, pregnancy and postpartum period (2017) · Cochrane
no estimate extractedNRNo studies
Perineural vs intravenous dexamethasone
Incidence of serious adverse events (we used the NIH definition of adverse events. A serious event includes death, a life‐threatening event that requires hospitalization or prolonged hospitalization, disability or congenital anomaly) · peripheral nerve block
Dexamethasone as an adjuvant to peripheral nerve block (2017) · Cochrane
no estimate extractedNRNo studies
Intravenous dexamethasone vs placebo
Incidence of serious adverse events (we used the NIH definition of adverse events. A serious event includes death, a life‐threatening event that requires hospitalization or prolonged hospitalization, disability or congenital anomaly) · participants undergoing surgery with peripheral nerve block
Dexamethasone as an adjuvant to peripheral nerve block (2017) · Cochrane
no estimate extractedNRNo studies
Idrabiotaparinux vs idraparinux
Heparin‐induced thrombocytopenia ‐ not reported · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Low molecular weight heparin and idraparinux vs standard therapy
Major bleeding during the initial treatment · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Low molecular weight heparin and idraparinux vs standard therapy
All‐cause mortality · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Low molecular weight heparin and idraparinux vs standard therapy
Heparin‐induced thrombocytopenia · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Low molecular weight heparin and idraparinux vs standard therapy
All harmful effects · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Idraparinux vs standard therapy
Major bleeding during the initial treatment · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Idraparinux vs standard therapy
Heparin‐induced thrombocytopenia · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Fondaparinux plus vitamin K antagonist vs standard therapy
Heparin‐induced thrombocytopenia ‐ not measured · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Idrabiotaparinux vs idraparinux
Major bleeding during the initial treatment ‐ not reported · people > 18 years of age with a diagnosed deep vein thrombosis
Pentasaccharides for the treatment of deep vein thrombosis (2017) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Gestational age of the infant · neonates requiring endotracheal intubation
Orotracheal intubation in infants performed with a stylet versus without a stylet (2017) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Level of experience of the intubator · neonates requiring endotracheal intubation
Orotracheal intubation in infants performed with a stylet versus without a stylet (2017) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Type of stylet · neonates requiring endotracheal intubation
Orotracheal intubation in infants performed with a stylet versus without a stylet (2017) · Cochrane
no estimate extractedNRNo studies
ICS dose reduction vs no change
Steroid‐related AEs ‐ not reported · adults with asthma
Stepping down the dose of inhaled corticosteroids for adults with asthma (2017) · Cochrane
no estimate extractedNRNo studies
ICS dose reduction vs no change
Exacerbations requiring hospitalisation ‐ not reported · adults with asthma
Stepping down the dose of inhaled corticosteroids for adults with asthma (2017) · Cochrane
no estimate extractedNRNo studies
Chlorpromazine vs Clotiapine
Global state: clinically important change · people with schizophrenia
Chlorpromazine versus clotiapine for schizophrenia (2017) · Cochrane
no estimate extractedNRNo studies
Chlorpromazine vs Clotiapine
Adverse effects: clinically significant extrapyramidal symptoms · people with schizophrenia
Chlorpromazine versus clotiapine for schizophrenia (2017) · Cochrane
no estimate extractedNRNo studies
Chlorpromazine vs Clotiapine
Cost of care · people with schizophrenia
Chlorpromazine versus clotiapine for schizophrenia (2017) · Cochrane
no estimate extractedNRNo studies
Aloe vera vs topical antibiotics
Adverse events · people with burns
Antiseptics for burns (2017) · Cochrane
no estimate extractedNRNo studies
Iodine vs topical antibiotics
Infection · people with burns
Antiseptics for burns (2017) · Cochrane
no estimate extractedNRNo studies
Silver vs non‐antibacterial
Infection · people with burns
Antiseptics for burns (2017) · Cochrane
no estimate extractedNRNo studies