Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

94 questions · 97 findings · 9 reviews · Gut

No studies found 14 · 14.4%GRADE not reported 2 · 2.1%Very low 19 · 19.6%Low 27 · 27.8%Moderate 26 · 26.8%High 9 · 9.3%

Ustekinumab vs placebo

Failure to maintain remission · people with moderate to severe Crohn's disease in remission

Ustekinumab showed no clear difference in failure to maintain clinical remission compared with placebo (moderate certainty).

2 findings from 1 review

Ustekinumab vs placebo

Failure to maintain clinical response · people with moderate to severe Crohn's disease in remission

Ustekinumab probably leads to lower failure to maintain clinical response compared with placebo (moderate certainty).

2 findings from 1 review

On‐demand deprescribing vs continued use

Adverse drug withdrawal events ‐ esophagitis (endoscopic findings) · people with moderate GERD and mild esophagitis, mean age 48 to 57 years

On‐demand deprescribing may leads to higher adverse drug withdrawal events ‐ esophagitis (endoscopic findings) compared with continued use (low certainty).

1 finding from 1 review

Abrupt discontinuation deprescribing vs continued use

Lack of symptom control · people with mild to moderate esophagitis, symptomatic, aged > 18 years (mean age 73 years)

It is very uncertain whether abrupt discontinuation deprescribing changes lack of symptom control compared with continued use (very low certainty).

1 finding from 1 review

Abrupt discontinuation deprescribing vs continued use

Adverse drug withdrawal events ‐ relapse (endoscopic findings) · people with mild to moderate esophagitis, symptomatic, aged > 18 years (mean age 73 years)

It is very uncertain whether abrupt discontinuation deprescribing changes adverse drug withdrawal events ‐ relapse (endoscopic findings) compared with continued use (very low certainty).

1 finding from 1 review