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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
Erythromycin plus nasogastric tube lavage vs metoclopramide plus nasogastric tube lavage
Blood transfusion · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
no estimate extracted1 study · 30 participantsVery low
Erythromycin vs placebo
All‐cause mortality · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
RD 03 studies · 255 participantsVery low
Erythromycin vs placebo
Visualisation of gastric mucosa · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
no estimate extracted2 studies · 195 participantsLow
Erythromycin vs placebo
NSAEs · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
RD 0.013 studies · 255 participantsVery low
Erythromycin vs placebo
Rebleeding · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
RR 0.63 [0.13, 2.9]2 studies · 195 participantsVery low
Erythromycin vs placebo
Blood transfusion · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
no estimate extracted3 studies · 255 participantsLow
Erythromycin plus nasogastric tube lavage vs no intervention/placebo plus nasogastric tube lavage
UGIH‐related mortality · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
no estimate extracted1 study · 29 participantsVery low
Erythromycin plus nasogastric tube lavage vs no intervention/placebo plus nasogastric tube lavage
SAEs · people with acute UGIH
Erythromycin prior to endoscopy for acute upper gastrointestinal haemorrhage (2023) · Cochrane
no estimate extracted6 studies · 408 participantsVery low
STW5 (Iberogast) vs placebo
Global symptoms of dyspepsia · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
no estimate extracted5 studies · 814 participantsVery low
Curcuma longa vs placebo
Global symptoms of dyspepsia (responders) · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
RR 1.5 [1.06, 2.11]1 study · 76 participantsLow
Curcuma longa vs placebo
Adverse events Assessed clinically · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
RR 1.26 [0.51, 3.08]1 study · 89 participantsModerate
Curcuma longa vs placebo
Quality of life · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
no estimate extracted1 study · 89 participantsModerate
STW5 (Iberogast) vs placebo
Global symptoms of dyspepsia (responders) · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
RR 1.55 [0.98, 2.47]2 studies · 324 participantsLow
STW5 (Iberogast) vs placebo
Adverse events Assessed clinically · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
RR 0.92 [0.52, 1.64]4 studies · 786 participantsLow
STW5 (Iberogast) vs placebo
Quality of life · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
no estimate extracted1 study · 52 participantsLow
Peppermint/caraway oil vs placebo
Global symptoms of dyspepsia · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
no estimate extracted2 studies · 210 participantsModerate
Peppermint/caraway oil vs placebo
Global symptoms of dyspepsia (responders) · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
RR 1.53 [1.3, 1.81]3 studies · 305 participantsModerate
Peppermint/caraway oil vs placebo
Adverse events Assessed clinically · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
RR 1.56 [0.69, 3.53]3 studies · 305 participantsLow
Peppermint/caraway oil vs placebo
Quality of life · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
no estimate extracted1 study · 99 participantsModerate
Curcuma longa vs placebo
Global symptoms of dyspepsia · participants with functional dyspepsia
Non‐Chinese herbal medicines for functional dyspepsia (2023) · Cochrane
no estimate extracted2 studies · 110 participantsModerate
Vedolizumab vs placebo
Induction of clinical remission (6–10 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 1.61 [1.2, 2.17]4 studies · 1126 participantsHigh
Vedolizumab vs placebo
Induction of clinical response (6–10 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 1.43 [1.19, 1.71]4 studies · 1126 participantsHigh
Vedolizumab vs placebo
Adverse events (6–10 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 1.01 [0.93, 1.11]4 studies · 1126 participantsModerate
Vedolizumab vs placebo
Serious adverse events (6–10 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 0.91 [0.62, 1.33]4 studies · 1126 participantsLow
Vedolizumab vs placebo
Maintenance of clinical remission (52–60 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 1.52 [1.24, 1.87]3 studies · 894 participantsHigh
Vedolizumab vs placebo
Adverse events (52–60 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 1 [0.94, 1.07]3 studies · 894 participantsModerate
Vedolizumab vs placebo
Serious adverse events (52–60 weeks) · children or adults with Crohn's disease
Vedolizumab for induction and maintenance of remission in Crohn's disease (2023) · Cochrane
RR 0.98 [0.68, 1.39]3 studies · 894 participantsLow
Patient education and standard care vs standard care
Disease activity (3‐12 months) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted2 studies · 479 participantsModerate
Weekly educational texts messages vs once every other week educational text messages
Flare‐ups or relapse (continuous) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Weekly educational texts messages vs once every other week educational text messages
Flare‐ups or relapse (dichotomous) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Weekly educational texts messages vs once every other week educational text messages
Quality of life, IBDQ (32 minimum score ‐ 224 maximum score; high score = better quality of life) (12 months) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 193 participantsVery low
Patient education and standard care vs standard care
Flare‐ups or relapse (mean number during study period, start‐12 months) (continuous outcome) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted2 studies · 1022 participantsModerate
Patient education and standard care vs standard care
Flare‐ups or relapse (4‐12 months) (dichotomous outcome) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
RR 0.94 [0.41, 2.18]3 studies · 307 participantsVery low
Patient education and standard care vs standard care
Quality of life (2 weeks‐12 months) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted6 studies · 1364 participantsModerate
Web‐based patient education vs other delivery of patient education
Disease activity (8 weeks) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 32 participantsVery low
Web‐based patient education vs other delivery of patient education
Flare‐ups or relapse (continuous) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Web‐based patient education vs other delivery of patient education
Flare‐ups or relapse (dichotomous) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extractedNRNo studies
Web‐based patient education vs other delivery of patient education
Quality of life, IBDQ (32 minimum score to 224 maximum score; high score = better quality of life) (8 weeks) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 58 participantsVery low
Weekly educational texts messages vs once every other week educational text messages
Disease activity (12 months) · people with inflammatory bowel disease
Patient education interventions for the management of inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 131 participantsVery low
Summary of findings table ‐ Fecal microbiota transplantation (FMT) vs control
Resolution of rCDI · adults with recurrent Clostridioides difficile infection (rCDI)
Fecal microbiota transplantation for the treatment of recurrent Clostridioides difficile (Clostridium… (2023) · Cochrane
RR 1.92 [1.36, 2.71]6 studies · 320 participantsModerate
Summary of findings table ‐ Fecal microbiota transplantation (FMT) vs control
Serious adverse events · adults with recurrent Clostridioides difficile infection (rCDI)
Fecal microbiota transplantation for the treatment of recurrent Clostridioides difficile (Clostridium… (2023) · Cochrane
RR 0.73 [0.38, 1.41]6 studies · 320 participantsModerate
Summary of findings table ‐ Fecal microbiota transplantation (FMT) vs control
All‐cause mortality · adults with recurrent Clostridioides difficile infection (rCDI)
Fecal microbiota transplantation for the treatment of recurrent Clostridioides difficile (Clostridium… (2023) · Cochrane
RR 0.57 [0.22, 1.45]6 studies · 320 participantsLow
Summary of findings table ‐ Fecal microbiota transplantation (FMT) vs control
Colectomy · adults with recurrent Clostridioides difficile infection (rCDI)
Fecal microbiota transplantation for the treatment of recurrent Clostridioides difficile (Clostridium… (2023) · Cochrane
no estimate extracted0 studies · 0 participantsUngraded
Web‐based disease monitoring vs usual care
Disease activity (adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted3 studies · 428 participantsModerate
Web‐based disease monitoring vs self‐screening
Flare‐ups/relapse (dichotomous; 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
Web‐based disease monitoring vs self‐screening
Quality of life (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
Telephone‐based disease monitoring vs face‐to‐face monitoring
Disease activity (adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
no estimate extracted1 study · 60 participantsVery low
Telephone‐based disease monitoring vs face‐to‐face monitoring
Flare‐ups/relapse (dichotomous; adults) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
RR 1.17 [0.47, 2.89]1 study · 42 participantsVery low
Telephone‐based disease monitoring vs face‐to‐face monitoring
Flare‐ups/relapse (dichotomous; children) · people with inflammatory bowel disease
Remote care through telehealth for people with inflammatory bowel disease (2023) · Cochrane
RR 0.24 [0.03, 2.05]1 study · 86 participantsVery low
Telephone‐based disease monitoring vs face‐to‐face 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 · 123 participantsVery low