Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

176 questions · 176 findings · 20 reviews

No studies found 21 · 11.9%GRADE not reported 7 · 4%Very low 17 · 9.7%Low 36 · 20.5%Moderate 68 · 38.6%High 27 · 15.3%

Tiotropium + LABA/ICS combination vs tiotropium

Non‐fatal serious adverse events · patients with chronic obstructive pulmonary disease

Tiotropium + LABA/ICS combination showed no clear difference in serious adverse events (non‐fatal) compared with tiotropium (low certainty).

1 finding from 1 review