Table 3.

Clinical Outcomes of COPD Patients Admitted to the ICU in the Original and Matched Cohorts

	Overall	Low RAR	High RAR	P
Original cohort	N=1174	N=708	N=466
Hospital stays, day	10.00 [6.00, 18.00]	9.00 [5.00, 15.00]	14.00 [8.00, 22.75]	<0.001
ICU stays, day	3.00 [1.00, 6.00]	2.00 [1.00, 5.00]	4.00 [2.00, 9.00]	<0.001
Hospital mortality	191 (16.3)	61 (8.6)	130 (27.9)	<0.001
Matched cohort	N=638	N=319	N=319
Hospital stays, day	12.00 [7.00, 19.00]	10.00 [6.00, 16.50]	13.00 [7.50, 21.50]	<0.001
ICU stays, day	3.00 [2.00, 7.00]	3.00 [1.00, 7.00]	3.00 [2.00, 7.00]	0.133
Hospital mortality	116 (18.2)	44 (13.8)	72 (22.6)	0.005

Notes: Continuous variables are represented as median [IQR]; Categorical variables are represented as n (%).

Abbreviations: COPD, chronic obstructive pulmonary disease; ICU, intensive care unit; RAR, red blood cell distribution width–albumin ratio.