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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
Rifaximin vs placebo
Adverse events · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.5 [0.72, 3.14]1 study · 18 participantsVery low
Lactobacillus GG vs placebo
Clinical remission · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Lactobacillus GG vs placebo
Clinical improvement · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 3 [0.14, 65.9]1 study · 20 participantsVery low
Lactobacillus GG vs placebo
Maintenance of clinical remission · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Lactobacillus GG vs placebo
No episodes acute pouchitis · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Ciprofloxacin vs metronidazole
Clinical improvement · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Lactobacillus GG vs placebo
Adverse events · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Glutamine vs butyrate
Clinical remission · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Glutamine vs butyrate
Clinical improvement · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Glutamine vs butyrate
Maintenance of clinical remission · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.8 [0.63, 5.16]1 study · 19 participantsVery low
Glutamine vs butyrate
No episodes acute pouchitis · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Glutamine vs butyrate
Adverse events · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bismuth enema vs placebo
Clinical remission · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bismuth enema vs placebo
Clinical improvement · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1 [0.5, 1.98]1 study · 40 participantsVery low
Bismuth enema vs placebo
Maintenance of clinical remission · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bismuth enema vs placebo
No episodes acute pouchitis · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Ciprofloxacin vs metronidazole
Maintenance of clinical remission · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bismuth enema vs placebo
Adverse events · Patients with chronic pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 0.71 [0.27, 1.88]1 study · 40 participantsVery low
De Simone Formulation vs placebo
Clinical remission · Patients with chronic pouchitis or ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
De Simone Formulation vs placebo
Clinical improvement · Patients with chronic pouchitis or ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
De Simone Formulation vs placebo
Maintenance of clinical remission · Patients with chronic pouchitis or ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 20.24 [4.28, 95.81]2 studies · 76 participantsLow
De Simone Formulation vs placebo
No episodes of acute pouchitis · Patients with chronic pouchitis or ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.5 [1.02, 2.21]1 study · 40 participantsLow
De Simone Formulation vs placebo
Adverse events · Patients with chronic pouchitis or ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 2.43 [0.11, 55.89]2 studies · 76 participantsLow
De Simone Formulation vs no treatment
Clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
De Simone Formulation vs no treatment
Clinical improvement · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
De Simone Formulation vs no treatment
Maintenance of clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
De Simone Formulation vs no treatment
No episodes of acute pouchitis · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.1 [0.89, 1.36]1 study · 28 participantsVery low
Ciprofloxacin vs metronidazole
No episodes acute pouchitis · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
De Simone Formulation vs no treatment
Adverse events · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bifidobacterium longum vs placebo
Clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bifidobacterium longum vs placebo
Clinical improvement · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bifidobacterium longum vs placebo
Maintenance of clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Bifidobacterium longum vs placebo
No episodes of acute pouchitis · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.43 [0.66, 3.11]1 study · 12 participantsVery low
Bifidobacterium longum vs placebo
Adverse events · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Allopurinol vs placebo
Clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Allopurinol vs placebo
Clinical improvement · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Allopurinol vs placebo
Maintenance of clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Allopurinol vs placebo
No episodes of acute pouchitis · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.43 [0.66, 3.11]1 study · 184 participantsLow
Ciprofloxacin vs metronidazole
Adverse events · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 0.18 [0.01, 2.98]1 study · 16 participantsVery low
Allopurinol vs placebo
Adverse events · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Tinidazole vs placebo
Clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Tinidazole vs placebo
Clinical improvement · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Tinidazole vs placebo
Maintenance of clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Tinidazole vs placebo
No episodes of acute pouchitis · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.38 [0.83, 2.31]1 study · 38 participantsVery low
Tinidazole vs placebo
Adverse events · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Adalimumab vs placebo
Clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Adalimumab vs placebo
Clinical improvement · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 1.17 [0.36, 3.76]1 study · 13 participantsLow
Adalimumab vs placebo
Maintenance of clinical remission · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Adalimumab vs placebo
No of episodes of acute pouchitis · Patients with ileal pouch‐anal anastomosis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
no estimate extractedNRNo studies
Metronidazole vs budesonide enema
Clinical remission · Patients with acute pouchitis
Treatment and prevention of pouchitis after ileal pouch‐anal anastomosis for chronic ulcerative colitis (2019) · Cochrane
RR 0.86 [0.37, 1.96]1 study · 26 participantsVery low