Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

194 questions · 206 findings · 19 reviews

No studies found 68 · 33%GRADE not reported 5 · 2.4%Very low 89 · 43.2%Low 27 · 13.1%Moderate 9 · 4.4%High 8 · 3.9%

Slow passive expiration vs control

Change in the severity status of bronchiolitis Assessed using a variety of scales · infants up to 24 months of age with acute bronchiolitis

Slow passive expiration showed no clear difference in change in the severity status of bronchiolitis Assessed using a… compared with control (low certainty).

1 finding from 1 review

Forced expiration vs control

Change in the severity status of bronchiolitis Assessed using a variety of scales · infants up to 24 months of age with acute bronchiolitis

It is very uncertain whether forced expiration changes change in the severity status of bronchiolitis Assessed using a… compared with control (very low certainty).

1 finding from 1 review