Table 3.

Coefficients of determination ${\mathit{r}}^2$ for $A_{\mathit{\tau }}/D_A^2$ versus mean centerline inflow velocity squared $U^2$ or artery Re for different threshold values of the wall shear stress duty factor

	Re		$U^2$
${\tau }_o$ (Pa)	$r^2$	$p$	$r^2$	$p$
7.5	0.70	0.16	0.99	<0.01
10	0.72	0.15	0.99	<0.01
15	0.74	0.14	0.96	<0.05

Note: Significance determined by two-tailed t-test. Here, ${\tau }_o$ is the threshold value of the wall shear stress for the duty factor.