Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

637 questions · 674 findings · 79 reviews · Gut

No studies found 116 · 17.2%GRADE not reported 14 · 2.1%Very low 133 · 19.7%Low 225 · 33.4%Moderate 145 · 21.5%High 41 · 6.1%

Probiotics vs placebo

Withdrawals due to adverse events · induction of remission in Crohn's disease

It is very uncertain whether probiotics changes adverse events leading to withdrawal compared with placebo (very low certainty).

1 finding from 1 review

Probiotics vs placebo

Maintenance of clinical remission · Patients with quiescent ulcerative colitis

It is very uncertain whether probiotics changes maintenance of clinical remission (52 weeks) compared with placebo (very low certainty).

1 finding from 1 review