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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)

2,395 questions in 172 reviews · Gut

current versions
No studies 420 · 17.5%Ungraded 60 · 2.5%Very low 821 · 34.3%Low 602 · 25.1%Moderate 397 · 16.6%High 95 · 4%

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
Telephone‐based disease monitoring vs face‐to‐face monitoring
Quality of life (children) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 86 participantsVery low
Cognitive behavioural therapy manual and telephone support vs usual care
Disease activity · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy manual and telephone support vs usual care
Flare‐ups/relapse · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Cognitive behavioural therapy manual and telephone support vs usual care
Quality of life · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Web‐based disease monitoring vs usual care
Flare‐ups/relapse (dichotomous; adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
RR 1.09 [0.93, 1.27]5 studies · 868 participantsModerate
Web‐based disease monitoring vs usual care
Flare‐ups/relapse (continuous; adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 909 participantsModerate
Web‐based disease monitoring vs usual care
Flare‐ups/relapse (dichotomous; children) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
RR 0.99 [0.65, 1.51]1 study · 170 participantsLow
Web‐based disease monitoring vs usual care
Quality of life (adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted4 studies · 1099 participantsModerate
Web‐based disease monitoring vs sham monitoring
Disease activity · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Web‐based disease monitoring vs sham monitoring
Flare‐ups/relapse · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Web‐based disease monitoring vs sham monitoring
Quality of life (adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted2 studies · 447 participantsVery low
Web‐based disease monitoring vs self‐screening
Disease activity (adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 102 participantsVery low
Proton pump inhibitor treatment vs H2RA, placebo or no treatment
Mortality ‐ within 30 days · people with upper gastrointestinal bleeding prior to endoscopic diagnosis
Proton pump inhibitor treatment initiated prior to endoscopic diagnosis in upper gastrointestinal bleeding (2022) · Cochrane
OR 1.14 [0.76, 1.7]5 studies · 2143 participantsLow
Proton pump inhibitor treatment vs H2RA, placebo or no treatment
Rebleeding ‐ within 30 days · people with upper gastrointestinal bleeding prior to endoscopic diagnosis
Proton pump inhibitor treatment initiated prior to endoscopic diagnosis in upper gastrointestinal bleeding (2022) · Cochrane
OR 0.81 [0.62, 1.06]5 studies · 2121 participantsLow
Proton pump inhibitor treatment vs H2RA, placebo or no treatment
Surgery ‐ within 30 days · people with upper gastrointestinal bleeding prior to endoscopic diagnosis
Proton pump inhibitor treatment initiated prior to endoscopic diagnosis in upper gastrointestinal bleeding (2022) · Cochrane
OR 0.91 [0.65, 1.26]6 studies · 2223 participantsLow
Proton pump inhibitor treatment vs H2RA, placebo or no treatment
Proportion of participants with stigmata of recent haemorrhage at index endoscopy · people with upper gastrointestinal bleeding prior to endoscopic diagnosis
Proton pump inhibitor treatment initiated prior to endoscopic diagnosis in upper gastrointestinal bleeding (2022) · Cochrane
OR 0.8 [0.52, 1.21]4 studies · 1332 participantsLow
Proton pump inhibitor treatment vs H2RA, placebo or no treatment
Endoscopic haemostatic treatment at index endoscopy · people with upper gastrointestinal bleeding prior to endoscopic diagnosis
Proton pump inhibitor treatment initiated prior to endoscopic diagnosis in upper gastrointestinal bleeding (2022) · Cochrane
OR 0.68 [0.5, 0.93]3 studies · 1983 participantsModerate
Tacrolimus vs placebo
Clinical remission · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 3.76 [1.03, 13.73]3 studies · 148 participantsLow
Tacrolimus vs beclometasone
Clinical improvement · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 1 [0.66, 1.52]1 study · 88 participantsLow
Tacrolimus vs beclometasone
Serious adverse events · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 3 [0.13, 71.7]1 study · 88 participantsLow
Tacrolimus vs beclometasone
Total adverse events · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 1.5 [0.88, 2.55]1 study · 88 participantsLow
Tacrolimus vs placebo
Clinical improvement · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 4.47 [2.15, 9.29]3 studies · 148 participantsLow
Tacrolimus vs placebo
Serious adverse events · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 2.44 [0.12, 48.77]3 studies · 148 participantsVery low
Tacrolimus vs placebo
Total adverse events · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 1.18 [0.91, 1.54]3 studies · 148 participantsLow
Tacrolimus vs ciclosporin
Clinical remission · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 1.52 [0.92, 2.5]1 study · 113 participantsVery low
Tacrolimus vs ciclosporin
Clinical improvement · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 0.9 [0.7, 1.16]1 study · 113 participantsVery low
Tacrolimus vs ciclosporin
Serious adverse events · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
no estimate extractedNRNo studies
Tacrolimus vs ciclosporin
Total adverse events · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
no estimate extractedNRNo studies
Tacrolimus vs beclometasone
Clinical remission · adults with refractory, moderate‐to‐severe ulcerative colitis
Tacrolimus (FK506) for induction of remission in corticosteroid‐refractory ulcerative colitis (2022) · Cochrane
RR 1.07 [0.6, 1.88]1 study · 88 participantsLow
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Post‐ERCP pancreatitis (PEP) · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
RR 0.51 [0.36, 0.72]15 studies · 4426 participantsModerate
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Primary cannulation success · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
RR 1.06 [1.01, 1.12]13 studies · 3962 participantsLow
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Overall cannulation success · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
RR 1.01 [1, 1.03]15 studies · 4426 participantsModerate
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Need for precut sphincterotomy · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
RR 0.79 [0.64, 0.96]10 studies · 2849 participantsModerate
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Post‐sphincterotomy bleeding · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
RR 0.87 [0.49, 1.54]7 studies · 2122 participantsLow
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Perforation · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
RR 0.93 [0.11, 8.23]8 studies · 2522 participantsVery low
Guidewire‐assisted cannulation vs contrast‐assisted cannulation
Mortality · Patients undergoing diagnostic or therapeutic ERCP
Guidewire‐assisted cannulation of the common bile duct for the prevention of post‐endoscopic retrograde… (2022) · Cochrane
no estimate extracted6 studies · 2276 participantsModerate
Physical activity vs usual care
IBS symptoms · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted5 studies · 185 participantsVery low
Similar physical activity interventions vs any control
Quality of life – yoga interventions · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted3 studies · 177 participantsVery low
Similar physical activity interventions vs any control
Quality of life – supervised treadmill exercise · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 20 participantsVery low
Similar physical activity interventions vs any control
Quality of life – advice to increase physical activity · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted2 studies · 93 participantsVery low
Similar physical activity interventions vs any control
Abdominal pain · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted2 studies · 48 participantsVery low
Physical activity vs pharmacological therapy
IBS symptoms · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 21 participantsVery low
Physical activity vs dietary interventions
IBS symptoms – 12 weeks · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 59 participantsLow
Physical activity vs dietary interventions
Quality of life – 12 weeks · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 59 participantsLow
Physical activity vs dietary interventions
Quality of life – 24 weeks · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 59 participantsLow
Physical activity vs dietary interventions
Abdominal pain – 12 weeks · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 59 participantsLow
Physical activity vs dietary interventions
Abdominal pain – 24 weeks · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted1 study · 59 participantsLow
Physical activity vs usual care
Quality of life · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted4 studies · 134 participantsVery low
Physical activity vs usual care
Abdominal pain · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted2 studies · 64 participantsVery low
Yoga vs walking
IBS symptoms · people with IBS
Physical activity for treatment of irritable bowel syndrome (2022) · Cochrane
no estimate extracted2 studies · 124 participantsVery low