Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

870 questions · 912 findings · 85 reviews · Airways

No studies found 65 · 7.1%GRADE not reported 34 · 3.7%Very low 115 · 12.6%Low 273 · 29.9%Moderate 330 · 36.2%High 95 · 10.4%

Intervention not reported

Adverse events-serious events Budesonide/formoterol (BDF) versus budesonide (BD) · patients with COPD

It is very uncertain whether the intervention changes adverse events-serious events Budesonide/formoterol (BDF) versus… (very low certainty).

1 finding from 1 review