Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,805 questions · 2,912 findings · 307 reviews · Headline outcomes only

No studies found 706 · 24.2%GRADE not reported 133 · 4.6%Very low 786 · 27%Low 696 · 23.9%Moderate 474 · 16.3%High 117 · 4%

Synbiotic 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 synbiotic changes severity of pain (at study end, using the Faces Pain Scale) compared with placebo (very low certainty).

1 finding from 1 review