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What do systematic reviews say?

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Evidence found and GRADE certainty

4,783 questions · 10,022 findings · 882 reviews

No studies found 2,100 · 21%GRADE not reported 1,013 · 10.1%Very low 2,237 · 22.3%Low 2,514 · 25.1%Moderate 1,709 · 17.1%High 449 · 4.5%

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Biofeedback plus standard therapy vs sham biofeedback plus standard therapy

Clinical remission or improvement · people with irritable bowel syndrome

It is very uncertain whether biofeedback plus standard therapy changes clinical response (adequate improvement or remission) compared with sham biofeedback plus standard therapy (very low certainty).

1 finding from 1 review