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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.
15,213 questions in 2,394 reviews
current versionsNo 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.
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Prebiotic vs another prebiotic Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic eGFR · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic Albuminuria or proteinuria · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic Indoxyl sulfate · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic Change in any GI upset or intolerance · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic Microbiota composition · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic Graft function · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs probiotic Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs another synbiotic Microbiota composition · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs another probiotic Albuminuria or proteinuria · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs another probiotic Indoxyl sulfate · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs another probiotic Change in any GI upset or intolerance · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs another probiotic Microbiota composition · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs another probiotic Graft function · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs another probiotic Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs placebo or no treatment Albuminuria or proteinuria · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs placebo or no treatment Indoxyl sulfate · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs another synbiotic Graft function · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs placebo or no treatment Microbiota composition · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs placebo or no treatment Graft function · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs placebo or no treatment Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs placebo or no treatment eGFR · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs placebo or no treatment Albuminuria or proteinuria · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs another synbiotic Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs placebo or no treatment Any change in GI upset or intolerance · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs placebo or no treatment Graft function · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Prebiotic vs placebo or no treatment Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs placebo or no treatment Microbiota composition · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs placebo or no treatment Graft function · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Probiotic vs placebo or no treatment Graft infection · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Synbiotic vs prebiotic Albuminuria or proteinuria · people with CKD Synbiotics, prebiotics and probiotics for people with chronic kidney disease (2023) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Tranexamic acid vs placebo Red cell transfusions (units per participant) up to 30 days post surgery · people aged 18 and over undergoing vascular surgery Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fibrin sealant vs usual care Red cell transfusions (units per participant) up to 30 days post surgery · people aged 18 and over undergoing vascular surgery Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane | no estimate extracted | NR | No studies |
Summary of findings: Fibrin sealant vs usual care Risk of receiving any allogeneic blood product up to 30 days · people aged 18 and over undergoing vascular surgery Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane | no estimate extracted | NR | No studies |
CPAP and supportive care vs supportive care Failed CPAP · preterm infants with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Variable flow vs bubble CPAP Adverse events · preterm infants, 24 to 29 weeks gestation and mean age 18 days with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Variable flow vs bubble CPAP Long‐term neurodevelopmental outcomes · preterm infants, 24 to 29 weeks gestation and mean age 18 days with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Infant Flow CPAP vs Medijet CPAP Long‐term neurodevelopmental outcomes · preterm infants with apnoea of prematurity (gestation 27 weeks, age not stated) Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
CPAP and supportive care vs supportive care Mean apnoea events · preterm infants with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
CPAP and supportive care vs supportive care Adverse events · preterm infants with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
CPAP and supportive care vs supportive care Long‐term neurodevelopmental outcomes · preterm infants with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Variable flow vs ventilator CPAP Long‐term neurodevelopmental outcomes · preterm infants with apnoea of prematurity (median age 9 days) Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Variable flow vs bubble CPAP Failed CPAP · preterm infants, 24 to 29 weeks gestation and mean age 18 days with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Variable flow vs bubble CPAP Mean apnoea events · preterm infants, 24 to 29 weeks gestation and mean age 18 days with apnoea of prematurity Continuous positive airway pressure (CPAP) for apnoea of prematurity (2023) · Cochrane | no estimate extracted | NR | No studies |
Intervention NR Pravastatin 10 to 80 mg/day (6 to 156 weeks) · participants with normal or abnormal lipid profiles Pravastatin for lowering lipids (2023) · Cochrane | no estimate extracted | NR | No studies |
Gait training protocol focused on impairment level vs gait training protocol focused on task level Quality of life · 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 extracted | NR | No studies |
Gait training protocol focused on impairment level vs gait training protocol focused on task level 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 extracted | NR | No studies |
Motor imaging vs usual care Adverse events · 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 extracted | NR | No studies |
Motor imaging vs usual care Mortality – all causes · 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 extracted | NR | No studies |
Motor imaging vs usual care Quality of life · 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 extracted | NR | No studies |