Table 2.

Significance of the Spline Regression and Goodness of Fit of the Models Used to Test the Relationship Between the BAR Score and Vascular Events

	P Value for the Regression of the Linear B Coefficient	P Value for the Regression of the Spline B Coefficient	−2 log Differential (df)	P Value for −2 log Differential
All death	0.127	0.001	9.119 (1)	0.002
Vascular death	0.059	0.019	4.731 (1)	0.029
Myocardial infarction	0.795	0.098	2.416 (1)	0.120
Ischemic stroke	0.559	0.744	0.100 (1)	0.751
Any vascular events	0.162	0.050	3.788 (1)	0.051

A P value for the regression of the spline B coefficient that is ≤0.05 suggests that the risk of vascular events is not linearly distributed. A P value for −2 log differential ≤0.050 implies improvement in the model fitness with a non-linear assumption of the risk. BAR indicates brain arterial remodeling.