Table 4.

Perclose propensity match covariate distributions.

Covariate	Total Study Population			Propensity Matched			Unmatched Cases
	Perclose n = 2,539	Alternative VCD n = 7,414	Standard Differencea	Perclose n = 2,489	Alternative VCD n = 2,489	Standard Differencea	Perclose n = 50	Standard Differencea
Age≥70 years	39.54	34.23	11.02	39.71	36.20	6.63	46.00	13.35
Women	25.88	23.95	4.44	25.87	23.62	5.22	26.00	0.29
Patient Height, mean (SD), cm	170.9 (9.9)	171.5 (10.0)	2.85	170.9 (9.8)	171.5 (9.9)	2.71	171.9 (10.9)	4.77
Patient Weight, mean (SD), kg	84.5 (18.0)	86.4 (18.7)	5.09	84.5 (18.0)	86.2 (18.7)	4.64	83.8 (20.7)	1.96
History of Diabetes	34.53	32.33	4.67	34.58	32.90	3.56	32.00	5.48
Hypertension	84.43	80.81	9.56	84.31	80.86	9.11	90.00	17.06
Chronic Lung Disease	15.37	12.18	9.27	15.23	12.91	6.69	22.00	17.45
Current Dialysis	2.21	1.70	3.66	2.09	1.61	3.58	8.00	27.26
History of Peripheral Artery Disease	13.96	9.54	13.75	13.92	8.27	18.07	16.00	5.85
NSTEMI on Presentation	23.63	22.15	3.53	23.22	24.15	2.17	44.00	45.09
STEMI on Presentation	14.34	15.35	2.85	14.18	18.04	10.51	22.00	20.41
Emergent Procedure	16.98	16.31	1.79	16.63	19.69	7.93	34.00	40.76
Left main percutaneous cardiac intervention	5.00	2.10	15.79	4.58	2.61	10.59	26.00	62.34
Bivalirudin use	44.51	49.29	9.59	45.08	47.69	5.24	16.00	66.54
GlycoProtein IIb/IIIa antagonist use	16.03	21.03	12.89	16.27	19.37	8.09	4.00	41.53
Number of Vessels Treated, mean (SD)	1.3 (0.6)	1.3 (0.6)	4.17	1.3 (0.6)	1.3 (0.6)	5.94	1.4 (0.6)	3.03
Intra-aortic balloon pump	2.40	1.01	10.75	2.09	1.25	6.59	18.00	54.89
FluoroTime, minutes	257 (19.1)	21.7 (15.1)	12.06	25.5 (18.9)	22.1 (15.3)	9.91	51.7 (28.9)	56.60

Abbreviations: SD, standard deviation;

^aAbsolute standarized difference (percentile) in covariate means and proportions, before and after matching