Fig. 2

Baseline PSQI score in those with MCID and without MCID.

Note: (A) Baseline total PSQI score in COPD patients with MICD and without MICD; (B) Percentage of patients with PSQI > 5 in COPD patients with MICD and without MICD; (C) Sleep quality score in COPD patients with MICD and without MICD; (D) Sleep quality score in COPD patients with MICD and without MICD; (E) Daily disturbance score in COPD patients with MICD and without MICD; ns indicates P-values > 0.05;*indicates P-values < 0.05, ** indicates P-values < 0.01, *** indicates P-values < 0.001

Abbreviations: MCID, minimum clinically important difference; PSQI, Pittsburgh sleep quality index.