Table 1.

Demographics and Risk Factors for Incident Acute Abdominal Aortic Aneurysms by Gender and Type

	Total (n =103)	Male (n =75)	Female (n =28)	P Value	Ruptured (n =79)	Symptomatic (n =24)	P Value
Mean (SD) age, y	78.7 (8.6)	78.0 (8.5)	80.6 (8.8)	0.17	78.8 (9.2)	78.2 (6.5)	0.76
Male (%)	75 (72.8)				59 (74.7)	16 (66.7)	0.44
Previous vascular disease (%)
Angina	32 (31.1)	23 (30.7)	9 (32.1)	0.89	25 (31.6)	7 (29.2)	0.82
Acute coronary syndrome	25 (24.3)	21 (28.0)	4 (14.3)	0.20	19 (24.1)	6 (25.0)	0.92
Transient ischaemic attack	18 (17.5)	14 (18.7)	4 (14.3)	0.77	14 (17.7)	4 (16.7)	0.91
Stroke	18 (17.5)	14 (18.7)	4 (14.3)	0.77	12 (15.2)	6 (25.0)	0.27
Peripheral arterial disease	19 (18.4)	12 (16.0)	7 (25.0)	0.30	12 (15.2)	7 (29.2)	0.12
Any	59 (57.3)	41 (54.7)	18 (64.3)	0.38	45 (57.0)	14 (58.3)	0.91
Risk factors (%)
Current smoker	35 (34.0)	29 (38.7)	6 (21.4)	0.10	25 (31.6)	10 (41.7)	0.36
Ever smoked	79 (76.7)	62 (82.7)	17 (60.7)	0.02	60 (75.9)	19 (79.2)	0.74
Hypertension	70 (68.0)	44 (58.7)	26 (92.9)	0.001	51 (64.6)	19 (79.2)	0.18
Diabetes mellitus	11 (10.7)	8 (10.7)	3 (10.7)	1.00	8 (10.1)	3 (12.5)	0.72
Cardiac failure	14 (13.6)	8 (10.7)	6 (21.4)	0.16	12 (15.2)	2 (8.3)	0.51
Atrial fibrillation	20 (19.4)	15 (20.0)	5 (17.9)	0.81	17 (21.5)	3 (12.5)	0.39
Medications (%)
Statin	45 (43.7)	32 (42.7)	13 (46.4)	0.73	33 (41.8)	12 (50.0)	0.48
Aspirin	44 (42.7)	33 (44.0)	11 (39.3)	0.67	33 (41.8)	11 (45.8)	0.73
Other antiplatelet agents	4 (3.9)	3 (4.0)	1 (3.6)	1.00	2 (2.5)	2 (8.3)	0.23
Warfarin	10 (9.7)	8 (10.7)	2 (7.1)	0.72	9 (11.4)	1 (4.2)	0.45
Antihypertensives (%)
0	31 (30.1)	29 (38.7)	2 (7.1)		26 (32.9)	5 (20.8)
1	24 (23.3)	14 (18.7)	10 (35.7)		18 (22.8)	6 (25.0)
≥2	48 (46.6)	32 (42.7)	16 (57.1)	0.004	35 (44.3)	13 (54.2)	0.43