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What do systematic reviews say?

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Evidence found and GRADE certainty

4,710 questions · 14,842 findings · 1,394 reviews

No studies found 2,880 · 19.4%GRADE not reported 1,413 · 9.5%Very low 3,103 · 20.9%Low 3,870 · 26.1%Moderate 2,663 · 17.9%High 913 · 6.2%

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Probiotics vs placebo

Severity of pain (at study end, using the Faces Pain Scale) · children (4 to 18 years) with functional abdominal pain disorders

It is very uncertain whether probiotic changes severity of pain (at study end, using the Faces Pain Scale) compared with placebo (very low certainty).

1 finding from 1 review