COPD-specific health status questionnaire
Patient completed the French version of the SGRQ. This
validated 50-item questionnaire has been widely used
in patients with COPD. The SGRQ is composed of three
domains: symptoms, activity and impacts. Scores range
between 0 (no impairment) and 100 (worst possible health).
A difference _4.0 units is considered as the MCID.