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What do systematic reviews say?

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Evidence found and GRADE certainty

1 questions · 1 findings · 1 reviews

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 1 · 100%High 0 · 0%

MHRV vs placebo

Mean exacerbations requiring a course of oral corticosteroids · asthmatics with sensitivity to house dust mite

MHRV showed no clear difference in exacerbations needing oral steroids compared with placebo (moderate certainty).

1 finding from 1 review