Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

45 questions · 46 findings · 18 reviews

No studies found 9 · 19.6%GRADE not reported 7 · 15.2%Very low 20 · 43.5%Low 9 · 19.6%Moderate 1 · 2.2%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