Table 2.

Resource utilization for subjects with and without atrial fibrillation after coronary artery bypass graft surgery

Resource	No fibrillation (n = 482)	Fibrillation (n= 238)	P
Time in operating room, mean (SD), charge hours	3.9 (0.9)	3.8 (0.8)	.54
Length of stay
Total postoperative, mean (SD), days	4.4 (1.2)	5.8 (2.4)	<.001
Intensive care unit postoperative, mean (SD), days	1.2 (0.5)*	1.5 (1.5)†	.001
Readmission to intensive care unit, No. (%) of patients	1 (0.2)	11 (4.6)	<.001
Ward postoperative, mean (SD), days	3.3 (1.1)	4.3 (1.7)	<.001
No. of laboratory tests per subject, mean (SD)	38.6 (16.6)	53.7 (29.5)	<.001
Respiratory care
Mechanical ventilation, mean (SD), days	1.4 (0.5)	1.7 (1.3)	.002
Oxygen therapy, mean (SD), days	4.1 (1.3)	5.0 (2.3)	<.001
No. of electrocardiograms per subject, mean (SD)	1.9 (0.8)	2.5 (1.3)	<.001
Discharge disposition, No. (%) of patients			.017
Home	167 (34.6)	70 (29.4)
Home health agency	252 (52.3)	119 (50.0)
Posthospital care facility	63 (13.1)	47 (19.7)
Mortality	0 (0)	2 (0.8)

^*n = 477

^†n = 235