. Author manuscript; available in PMC: 2009 Jan 13.

Published in final edited form as: J Vasc Surg. 2008 Nov;48(5):1092–1100.e2. doi: 10.1016/j.jvs.2008.06.036

Table VI.

Risk factors of death after ruptured abdominal aortic aneurysms repair for patients matched by propensity score (n = 2,088), hazard ratio <1 is protective, hazard ratio >1 is harmful, hazard ratio = 1 is indifferent

Predictor	Hazard ratio	95% Confidence interval	P value
Endovascular repair	0.857	0.768-0.957	.0061
Ruptured AAA hospital annual volume^*	0.971	0.957-0.986	.0002
Patient age at the time of surgery^**	1.037	1.029-1.045	<.0001
Cerebrovascular diseases	1.543	1.299-1.833	<.0001
Hyperlipidemia	0.736	0.627-0.865	.0002
Hypertension	0.888	0.792-0.995	.0415

per one additional surgery.

^**

per one additional calendar year