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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)

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
Single foetal haemoglobin inducer at any dose or duration vs usual care or placebo
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
Two or more foetal haemoglobin inducers at any dose or duration vs a usual management protocol, placebo or a single 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
Two or more foetal haemoglobin inducers at any dose or duration vs a usual management protocol, placebo or a single 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
Two or more foetal haemoglobin inducers at any dose or duration vs a usual management protocol, placebo or a single foetal haemoglobin inducer
HbF levels (%) · 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
Two or more foetal haemoglobin inducers at any dose or duration vs a usual management protocol, placebo or a single 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
Single foetal haemoglobin inducer at any dose or duration vs usual care or placebo
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
Single foetal haemoglobin inducer at any dose or duration vs another 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
Single foetal haemoglobin inducer at any dose or duration vs another 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
Urinary catheter removal < 5 days postoperatively vs urinary catheter removal ≥ 5 days postoperatively
Incidence of symptomatic UTI · postoperative kidney transplant patients
Early versus late removal of urinary catheter after kidney transplantation (2023) · Cochrane
no estimate extractedNRNo studies
Urinary catheter removal < 5 days postoperatively vs urinary catheter removal ≥ 5 days postoperatively
Incidence of major urological complications · postoperative kidney transplant patients
Early versus late removal of urinary catheter after kidney transplantation (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, MD‐ICS/LABA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, MD‐ICS/LAMA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, MD‐ICS/LABA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MD‐ICS · adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA,…
Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Quality of life · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Adverse events (grade 3 to 4) · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Time to initiation of first subsequent therapy · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MSKCC risk group · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Serious adverse events (SAEs) · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Quality of life (QoL) · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
IMDC risk groups · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Quality of life (QoL) We reported this outcome narratively in this review. Here, long‐term results (i.e., at the end of treatment) are presented. In the comparison PAZ versus SUN, QoL was measured using FACIT‐F (score range 0‐52; higher scores rep... · people with a confirmed diagnosis of advanced renal cell carcinoma (combined risk groups) without previous systemic…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Quality of life · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Serious adverse events · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Adverse events (grade 3 or 4) · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Time to initiation of first subsequent therapy · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
MSKCC risk groups · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Quality of life (QoL) · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and an intermediate or poor risk according to…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
IMDC risk group · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Serious adverse events · people with a confirmed diagnosis of advanced renal cell carcinoma (RCC) and a favourable risk according to the…
First‐line therapy for adults with advanced renal cell carcinoma: a systematic review and network… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
All‐cause hospital admission (number of events) ‐ not reported
Social network interventions to support cardiac rehabilitation and secondary prevention in the management of… (2023) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Adverse events ‐ not reported
Social network interventions to support cardiac rehabilitation and secondary prevention in the management of… (2023) · Cochrane
no estimate extractedNRNo studies
Methylxanthine vs placebo or control
Major neurodevelopmental disability · preterm infants at risk for apnea
Methylxanthine for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Methylxanthine vs placebo or control
Major neurodevelopmental disability at 18 to 24 months · preterm infants with apnea
Methylxanthine for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Methylxanthine vs placebo or control
Death at hospital discharge · preterm infants prior to extubation
Methylxanthine for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
Methylxanthine vs placebo or control
Major neurodevelopmental disability at 18 to 24 months · preterm infants prior to extubation
Methylxanthine for the prevention and treatment of apnea in preterm infants (2023) · Cochrane
no estimate extractedNRNo studies
CHG‐IPA vs CHG‐A
All‐cause mortality throughout the hospital admission of the participant · neonates that require central line
Antiseptic solutions for skin preparation during central catheter insertion in neonates (2023) · Cochrane
no estimate extractedNRNo studies
CHG‐IPA vs PI
The proportion of infants or catheters with exit‐site infection, either microbiologically or clinically documented · neonates that require central line
Antiseptic solutions for skin preparation during central catheter insertion in neonates (2023) · Cochrane
no estimate extractedNRNo studies
CHG‐IPA vs PI
Premature central line removal, defined as number of central venous catheters (CVCs) removed in the trial as deemed by the author as the source of infection · neonates that require central line
Antiseptic solutions for skin preparation during central catheter insertion in neonates (2023) · Cochrane
no estimate extractedNRNo studies
CHG‐IPA vs CHG‐A
The proportion of infants or catheters with exit‐site infection, either microbiologically or clinically documented · neonates that require central line
Antiseptic solutions for skin preparation during central catheter insertion in neonates (2023) · Cochrane
no estimate extractedNRNo studies
Galantamine plus risperidone vs placebo plus risperidone
Overall autism features Not assessed · children and adolescents with a diagnosis of autism spectrum disorder
Acetylcholinesterase inhibitors for autistic spectrum disorders (2023) · Cochrane
no estimate extractedNRNo studies
Galantamine plus risperidone vs placebo plus risperidone
General health and function Not assessed · children and adolescents with a diagnosis of autism spectrum disorder
Acetylcholinesterase inhibitors for autistic spectrum disorders (2023) · Cochrane
no estimate extractedNRNo studies
Duplex ultrasound plus pulse palpation and arterial pressure index (ABI or TBI) vs pulse palpation plus arterial pressure index (ABI or TBI) (long term)
Adverse events resulting from DUS surveillance · people who underwent a lower limb revascularisation
Duplex ultrasound for surveillance of lower limb revascularisation (2023) · Cochrane
no estimate extractedNRNo studies
Duplex ultrasound plus pulse palpation and arterial pressure index (ABI or TBI) vs pulse palpation plus arterial pressure index (ABI or TBI) (long term)
All‐cause mortality · people who underwent a lower limb revascularisation
Duplex ultrasound for surveillance of lower limb revascularisation (2023) · Cochrane
no estimate extractedNRNo studies
Duplex ultrasound plus pulse palpation and arterial pressure index (ABI or TBI) vs pulse palpation plus arterial pressure index (ABI or TBI) (long term)
Functional walking ability · people who underwent a lower limb revascularisation
Duplex ultrasound for surveillance of lower limb revascularisation (2023) · Cochrane
no estimate extractedNRNo studies
Duplex ultrasound plus pulse palpation and arterial pressure index (ABI or TBI) vs pulse palpation plus arterial pressure index (ABI or TBI) (long term)
Clinical severity scales · people who underwent a lower limb revascularisation
Duplex ultrasound for surveillance of lower limb revascularisation (2023) · Cochrane
no estimate extractedNRNo studies
Duplex ultrasound plus pulse palpation and arterial pressure index (ABI or TBI) vs pulse palpation plus arterial pressure index (ABI or TBI) (long term)
Quality of life scores · people who underwent a lower limb revascularisation
Duplex ultrasound for surveillance of lower limb revascularisation (2023) · Cochrane
no estimate extractedNRNo studies