Gap finder

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)

504 questions in 57 reviews · Kidney and Transplant

current versions
No studies 504 · 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
Hypoxia‐inducible factor (HIF) stabilisers vs placebo
Life participation · people with CKD (including HD and PD)
Hypoxia‐inducible factor stabilisers for the anaemia of chronic kidney disease (2022) · Cochrane
no estimate extractedNRNo studies
Aerobic exercise vs no exercise or placebo exercise
Cardiovascularevents · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Resistance exercise vs no exercise or placebo exercise
Death (any cause) · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Resistance exercise vs no exercise or placebo exercise
Cardiovascular events · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Any exercise vs no exercise or placebo exercise
Cardiovascularevents · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Combined aerobic and resistance exercise vs no exercise or placebo exercise
Death (any cause) · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Combined aerobic and resistance exercise vs no exercise or placebo exercise
Cardiovascular events · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Combined aerobic and resistance exercise vs no exercise or placebo exercise
Fatigue · adults undergoing maintenance dialysis
Exercise training for adults undergoing maintenance dialysis (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
GI function · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Death · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs prebiotics
GI function · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs prebiotics
Graft health · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Graft health · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Adverse events · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Serious adverse events · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Synbiotics vs placebo
Death · adult solid organ transplant recipients (kidney)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
GI function · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Graft health · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Adverse events · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Probiotics vs placebo
Serious adverse events · adult solid organ transplant recipients (liver)
Synbiotics, prebiotics and probiotics for solid organ transplant recipients (2022) · Cochrane
no estimate extractedNRNo studies
Resistance (anaerobic) exercise training vs usual care or no exercise training
Maximal and functional exercise capacity · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Resistance (anaerobic) exercise training vs another form of resistance (anaerobic) exercise training
Pulmonary function · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Resistance (anaerobic) exercise training vs another form of resistance (anaerobic) exercise training
Pathological bone fractures · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Resistance (anaerobic) exercise training vs usual care or no exercise training
HRQoL · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Multimodal exercise training vs usual care or no exercise training
Pathological bone fractures · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Fourteen‐weeks vs 7‐weeks multimodal exercise training
Pathological bone fractures · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Resistance (anaerobic) exercise training vs usual care or no exercise training
Pulmonary function · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Resistance (anaerobic) exercise training vs usual care or no exercise training
Death (any cause) · adult lung transplant recipients
Exercise training for adult lung transplant recipients (2021) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Home dialysis · people with CKD
Urgent‐start peritoneal dialysis versus haemodialysis for people with chronic kidney disease (2021) · Cochrane
no estimate extractedNRNo studies
Bovine colostrum vs placebo
Death (any cause) · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Synsorb Pk vs placebo
Adverse events · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Synsorb Pk vs placebo
Need for acute dialysis · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Synsorb Pk vs placebo
Neurological complications · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Synsorb Pk vs placebo
Death (any cause) · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Urtoxazumab (3.0 mg/kg) vs placebo
Need for acute dialysis · paediatric patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Antibiotics vs no treatment
Adverse events · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Urtoxazumab (1.0 mg/kg) vs placebo
Need for acute dialysis · paediatric patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Antibiotics vs no treatment
Need for acute dialysis · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Antibiotics vs no treatment
Neurological complications · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Antibiotics vs no treatment
Death (any cause) · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Bovine colostrum vs placebo
Need for acute dialysis · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Bovine colostrum vs placebo
Neurological complications · patients with diarrhoea due to Shiga toxin‐producing E. coli
Interventions for preventing diarrhoea‐associated haemolytic uraemic syndrome (2021) · Cochrane
no estimate extractedNRNo studies
Any weight loss intervention vs usual care or control
Death (any cause) · people with CKD who are overweight or obese
Interventions for weight loss in people with chronic kidney disease who are overweight or obese (2021) · Cochrane
no estimate extractedNRNo studies
Any weight loss intervention vs usual care or control
Cardiovascular events · people with CKD who are overweight or obese
Interventions for weight loss in people with chronic kidney disease who are overweight or obese (2021) · Cochrane
no estimate extractedNRNo studies
CVVHD vs CVVH or CVVHDF
Circuit lifespan · AKI patients receiving CKRT
Non‐pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal… (2021) · Cochrane
no estimate extractedNRNo studies
Pre‐dilution vs post‐dilution (as defined by study investigators)
Death from any cause at day 28 of · AKI patients receiving CKRT
Non‐pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal… (2021) · Cochrane
no estimate extractedNRNo studies
Pre‐dilution vs post‐dilution (as defined by study investigators)
Recovery of kidney function · AKI patients receiving CKRT
Non‐pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal… (2021) · Cochrane
no estimate extractedNRNo studies
Pre‐dilution vs post‐dilution (as defined by study investigators)
Vascular access complications · AKI patients receiving CKRT
Non‐pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal… (2021) · Cochrane
no estimate extractedNRNo studies
Higher blood flow vs standard blood flow
Death from any cause at day 28 of · AKI patients receiving CKRT
Non‐pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal… (2021) · Cochrane
no estimate extractedNRNo studies
Higher blood flow vs standard blood flow
Recovery of kidney function · AKI patients receiving CKRT
Non‐pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal… (2021) · Cochrane
no estimate extractedNRNo studies