Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

166 questions · 169 findings · 90 reviews

No studies found 44 · 26%GRADE not reported 5 · 3%Very low 48 · 28.4%Low 44 · 26%Moderate 25 · 14.8%High 3 · 1.8%

Non‐invasive ventilation during exercise training vs exercise training alone or exercise training with sham non‐invasive ventilation

Health‐related quality of life Change in total score of St George Respiratory Questionnaire · patients with chronic obstructive pulmonary disease
1 finding from 1 review