Table 1.

Baseline Characteristics of the Study Patients After Propensity-Score Matching.^*

Variable	Endovascular Repair (N = 39,966)	Open Repair (N = 39,966)	P Value
Year in which repair was performed — no. (%)
2001	5,150 (12.9)	5,166 (12.9)	0.87
2002	5,860 (14.7)	5,858 (14.7)	0.98
2003	5,800 (14.5)	5,839 (14.6)	0.70
2004	6,073 (15.2)	6,107 (15.3)	0.74
2005	5,584 (14.0)	5,663 (14.2)	0.42
2006	4,588 (11.5)	4,623 (11.6)	0.70
2007	3,825 (9.6)	3,731 (9.3)	0.26
2008	3,086 (7.7)	2,979 (7.5)	0.15
Male sex — no. (%)	31,047 (77.7)	31,012 (77.6)	0.77
Race or ethnic group — no. (%)†
White	38,120 (95.4)	38,093 (95.3)	0.65
Black	1,119 (2.8)	1,138 (2.8)	0.69
Hispanic	227 (0.6)	224 (0.6)	0.89
Other	500 (1.3)	511 (1.3)	0.73
Mean age — yr	75.7	75.5	<0.001
Age category — no. (%)
67–69 yr	5,851 (14.6)	5,968 (14.9)	0.24
70–74 yr	12,120 (30.3)	12,192 (30.5)	0.58
75–79 yr	12,468 (31.2)	12,297 (30.8)	0.19
80–84 yr	7,284 (18.2)	7,217 (18.1)	0.54
≥85 yr	2,243 (5.6)	2,292 (5.7)	0.45
Urgent admission — no. (%)	2,071 (5.2)	1,916 (4.8)	0.01
Prior abdominal aortic aneurysm — no. (%)	27,534 (68.9)	27,724 (69.4)	0.15
Coexisting conditions — no. (%)
MI in previous 6 mo	629 (1.6)	654 (1.6)	0.48
MI in previous 7–24 mo	2,709 (6.8)	2,686 (6.7)	0.75
Valvular heart disease	3,467 (8.7)	3,439 (8.6)	0.73
Congestive heart failure	4,671 (11.7)	4,630 (11.6)	0.65
Peripheral vascular disease	7,897 (19.8)	7,767 (19.4)	0.25
Neurovascular disease	5,562 (13.9)	5,544 (13.9)	0.85
Hypertension	25,257 (63.2)	25,137 (62.9)	0.38
Diabetes	6,427 (16.1)	6,373 (15.9)	0.60
COPD	11,117 (27.8)	11,102 (27.8)	0.91
Renal failure	2,250 (5.6)	2,197 (5.5)	0.41
End-stage renal disease	165 (0.4)	146 (0.4)	0.28
History of cancer	6,710 (16.8)	6,762 (16.9)	0.62
Obesity	811 (2.0)	787 (2.0)	0.54

^*COPD denotes chronic obstructive pulmonary disease, and MI myocardial infarction.

^†Race or ethnic group was self-reported.