Table 3.

Univariate correlations of each low attenuation and totally uncalcified plaque volume in the ICAs with that in the aortic arch.

	Age (years- old)	Aortic LPV	Aortic TUPV	ICA LPV	ICA TUPV
Men	< 70	0.354	0.584∗	−0.089	−0.089
	≧70	0.122	0.111	0.056	−0.046
Cerebral infarction	< 70	0.209	0.281	−0.431	−0.399
	≧70	−0.077	0.041	−0.194	−0.092
Hyperlipidemia	< 70	0.478∗∗	0.469∗∗	−0.319	−0.301
	≧70	0.152	0.294	0.132	0.172
% stenosis ratio in ICA	< 70	0.583∗	0.197	−0.294	−0.360
	≧70	0.102	−0.016	0.056	0.043
>30% stenosis In ICA	< 70	0.714∗	0.403	−0.250	−0.250
	≧70	0.018	−0.023	−0.041	−0.068
Plaque thickness in ICA	< 70	0.405	0.029	−0.226	−0.309
	≧70	0.224	0.383	0.411	0.565∗

LPV: low-attenuation plaque volume, TUPV: total uncalcified plaque volume, ∗: presence of correlation, and ∗∗: marginal correlation.