Table.

Comparison of patient and treatment factors between derivation and validation cohorts

Patient factors	Derivation (n = 2367)	Validation (n = 1038)	P
Age, years, mean (SD)	72.2 (8.2)	73.8 (7.9)	<.001
Male	67.8	76.3	<.001
Hypertension	84.7	85.1	.464
Diabetes	18.7	17.3	.352
CAD			<.001
None	66.2	50.7
Prior MI/SVS cardiac 1	23.2	19.2
Stable angina/SVS cardiac 2	9.8	26.7
Recent MI/unstable angina/SVS cardiac 3	0.8	34.7
COPD			<.001
None	66.0	67.2
Not treated/SVS pulmonary 1	14.2	16.5
On medication/SVS pulmonary 2	15.8	9.7
On oxygen/SVS pulmonary 3	4.1	6.7
eGFR			<.001
>60	65.3	50.5
40–59	25.0	39.5
30–39	7.2	6.9
<30	2.6	3.1
Prior or current smoker	88.3	82	<.001
Discharge aspirin	82	71.1	<.001
Discharge statin	74.4	60.1	<.001
Length of hospital stay, days, mean (SD)	4 (8.5)	4.6 (5.9)	.071
In-hospital mortality	0.8	0.8	1
% EVAR (vs open)	69.8	58.6	<.001
AAA diameter, mm, mean (SD)	53.7 (6.4)	54.2 (6.1)	.024

AAA, Abdominal aortic aneurysm; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; eGFR, estimated glomerular filtration rate (Modification of Diet in Renal Disease formula); EVAR, endovascular aneurysm repair; MI, myocardial infarction; SD, standard deviation; SVS, Society for Vascular Surgery.

Values are reported as percentages unless otherwise indicated.