Table 3:

Cox proportional hazards model to find factors associated with aneurysm reduction

Single Cox Proportional Hazards ModelMultiple Cox Proportional Hazards Modela
Hazard Ratio95% CIP ValueHazard Ratio95% CIP Value
Age (yr)0.930.89–0.98.0030.990.93–1.05.63
Male sex0.680.25–1.86.46
Clinical presentation at diagnosis
AsymptomaticReferenceReference
Pain14.71.94–111.0093.630.38–34.8.26
Mass effect7.940.50–127.1413.30.59–299.10
Size
Maximum diameter (mm)0.610.46–0.82.0010.580.41–0.84.004
≥10 mm0.290.04–2.26.24
Hypertension0.080.02–0.35.0010.120.02–0.70.018
Diabetesb
Hyperlipidemia0.470.11–2.08.32
Smoking0.780.29–2.13.63
Location
Left1.390.16–12.5.77
Right2.870.37–22.1.31
BilateralReference
• Note:—CI indicates confidence interval.

• a Variables that were statistically significant in single Cox proportional hazards models were used in the multiple Cox proportional hazards models. The cutoff point of the P value was set at <.05.

• b All 6 patients with diabetes were excluded from this analysis because their aneurysms were unchanged.