Table S3.

Characteristics of subjects with COPD classified by annual rates of decline in FEV at baseline

	Rapid decliners (n=65)	Slow decliners (n=131)	Sustainers (n=65)	P-value
SGRQ total score	31±17	32±17	31±19	0.84
SGRQ activity score	43±20	43±22	45±22	0.70
SGRQ symptom score	41±23	45±22	39±25	0.18
SGRQ impact score	21±16	22±16	23±18	0.85
mMRC dyspnea scale	1.4±0.1	1.5±0.1	1.3±0.1	0.27
Cough and sputum, n (%)	7 (11)	11 (8)	11 (17)	0.22

Notes: Values are means ± SD; other values are numbers (%); P-values represent one-way analysis of variance.

Abbreviations: COPD, chronic obstructive pulmonary disease; SGRQ, St George’s Respiratory Questionnaire; mMRC, modified Medical Research Council.