Table 4:

Cox proportional hazards model to find factors associated with aneurysm enlargement

	Single Cox Proportional Hazards Model
	Hazard Ratio	95% CI	P Value
Age (yr)	0.93	0.85–1.01	.086
Male sex	0.54	0.09–3.22	.50
Clinical presentation at diagnosis
Asymptomatic	Reference	–	–
Pain	2.83	0.29–27.3	.37
Mass effect	9.38	0.56–156	.12
Size
Maximum diameter (mm)	1.30	1.11–1.52	.001
≥10 mm	18.0	1.95–167	.011
Hypertension	0.38	0.06–2.34	.30
Diabetes^{^a}
Hyperlipidemia	0.88	0.10–7.92	.91
Smoking	0.85	0.14–5.10	.86
Location
Left	0.13	0.01–1.65	.12
Right	0.19	0.02–1.57	.12
Bilateral	Reference

Note:—CI indicates confidence interval.
↵a All 6 patients with diabetes were excluded from this analysis because their aneurysms were unchanged.