Table 3.

Comparison of Study Populations Before and After Matching, 2006–2016

Measure	Non-COPD	COPD
	% (95% CI)	% (95% CI)
Fried Frailty, Frail, % (95% CI)
Before Matching	7.7 (7.2, 8.2)	22.4 (20.4, 24.4)
After Matching	8.2 (7.7, 8.6)	21.7 (20.3, 23.0)
Enhanced FI-CGA, Most Frail, % (95% CI)
Before Matching	2.3 (2.1, 2.6)	10.9 (9.3, 12.5)
After Matching	2.5 (2.3, 2.8)	9.5 (8.5, 10.5)
Modified BODE, Score ≥4, % (95% CI)
Before Matching	2.9 (2.7, 3.1)	22.0 (20.1, 24.0)
After Matching	3.6 (3.2, 3.9)	21.5 (20.1, 22.9)

Abbreviations: CI, confidence interval; COPD, chronic obstructive pulmonary disease.