Fig. 2
From: Long-term outcomes following first short-term clinically important deterioration in COPD
LS mean change from baseline in (a) FEV1 (mL) and (b) SGRQ score over time based on CID status (TORCH study ITT population), CI, confidence interval; CID, clinically important deterioration; CID+, presence of a CID within 6 months of enrollment into the study; CID-, absence of a CID within 6 months of enrollment into the study; COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 s; ITT, intent-to-treat; LS, least squares; SGRQ, St George’s Respiratory Questionnaire; TORCH, TOwards a Revolution in COPD Health