Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,293 questions · 2,395 findings · 172 reviews · Gut

No studies found 420 · 17.5%GRADE not reported 60 · 2.5%Very low 821 · 34.3%Low 602 · 25.1%Moderate 397 · 16.6%High 95 · 4%

Intensification of prophylactic therapy guided by colonoscopy vs intensification guided by clinical recurrence

Adverse effects ( · adult participants (> 16 years of age) undergoing intestinal resection due to Crohn's disease

It is very uncertain whether intensification of prophylactic therapy guided by colonoscopy changes adverse effects ( compared with intensification guided by clinical recurrence (very low certainty).

1 finding from 1 review

Initiation of prophylactic therapy guided by colonoscopy vs initiation of prophylactic therapy immediately after surgery

Clinical recurrence (until week 102) · adult participants (> 16 years of age) undergoing intestinal resection due to Crohn's disease

It is very uncertain whether initiation of prophylactic therapy guided by colonoscopy changes clinical recurrence (until week 102) compared with initiation of prophylactic therapy immediately after surgery (very low certainty).

1 finding from 1 review

Initiation of prophylactic therapy guided by colonoscopy vs initiation of prophylactic therapy immediately after surgery

Endoscopic recurrence · adult participants (> 16 years of age) undergoing intestinal resection due to Crohn's disease

It is very uncertain whether initiation of prophylactic therapy guided by colonoscopy changes endoscopic recurrence (at week 102) compared with initiation of prophylactic therapy immediately after surgery (very low certainty).

1 finding from 1 review

Initiation of prophylactic therapy guided by colonoscopy vs initiation of prophylactic therapy immediately after surgery

Surgical recurrence ( · adult participants (> 16 years of age) undergoing intestinal resection due to Crohn's disease

It is very uncertain whether initiation of prophylactic therapy guided by colonoscopy changes surgical recurrence ( compared with initiation of prophylactic therapy immediately after surgery (very low certainty).

1 finding from 1 review

Adalimumab vs placebo

Failure to maintain remission · Participants with Crohn's disease in remission

Adalimumab leads to lower failure to maintain clinical remission compared with placebo (high certainty).

2 findings from 1 review

Adalimumab vs placebo

Failure to maintain endoscopic remission · Participants with Crohn's disease in remission

Adalimumab probably leads to lower failure to maintain endoscopic remission compared with placebo (moderate certainty).

1 finding from 1 review

Adalimumab vs placebo

Withdrawals due to adverse events · Participants with Crohn's disease in remission

Adalimumab probably leads to lower withdrawals due to adverse events compared with placebo (moderate certainty).

1 finding from 1 review

Adalimumab vs placebo

Failure to maintain clinical or endoscopic response with prior TNF‐α antagonist exposure · Participants with Crohn's disease in remission

Adalimumab probably leads to lower failure to maintain clinical or endoscopic response with prior TNF‐α… compared with placebo (moderate certainty).

1 finding from 1 review