Findings

What do systematic reviews say?

1 questions · 1 findings · 1 reviews · Airways

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

Late exacerbations per participant · COPD

1 finding from 1 review

Influenza vaccine for chronic obstructive pulmonary disease (COPD) 2018 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 180 participants
Low