Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

37 questions · 38 findings · 16 reviews

No studies found 8 · 21.1%GRADE not reported 6 · 15.8%Very low 16 · 42.1%Low 7 · 18.4%Moderate 1 · 2.6%High 0 · 0%

Probiotics vs placebo

Adverse events · participants with cancer treated with radiotherapy (with or without chemotherapy)
2 findings from 1 review

Probiotics vs placebo

Adverse events · Patients with collagenous colitis

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

1 finding from 1 review