Table 1.

Correlation analysis of each arterial tortuosity with AIS.

Artery	Crude OR (95% CI)	P value	Adjusted OR (95% CI)	P value	AUC (95% CI)	P value
L.CA	1.109 (1.062-1.158)	<0.001	1.14 (1.068-1.217)	<0.001	0.709 (0.642-0.775)	<0.001
L.CCA	1.099 (1.041-1.159)	0.001	1.106 (1.031-1.187)	0.005	0.659 (0.586-0.733)	<0.001
L.ICA	1.049 (1.017-1.082)	0.002	1.044 (1-1.09)	0.048	0.665 (0.581-0.749)	0.001
L.EICA	1.137 (1.05-1.231)	0.002	1.307 (1.037-1.646)	0.023	0.79 (0.664-0.917)	<0.001
L.IICA	1.028 (0.994-1.063)	0.104	1.077 (1.014-1.143)	0.016	0.6 (0.435-0.766)	0.202
L.M1	1.028 (1.009-1.048)	0.005	1.026 (1.001-1.052)	0.043	0.644 (0.559-0.728)	0.001
R.CA	1.05 (1.012-1.088)	0.009	1.059 (1.007-1.113)	0.025	0.632 (0.56-0.704)	<0.001
R.CCA	1.06 (1.015-1.107)	0.009	1.066 (1.01-1.126)	0.02	0.647 (0.574-0.72)	<0.001
R.ICA	1.029 (0.999-1.061)	0.062	1.011 (0.97-1.052)	0.611	0.623 (0.537-0.708)	0.01
R.EICA	1.05 (0.995-1.108)	0.076	1.051 (0.985-1.122)	0.129	0.703 (0.565-0.841)	0.01
R.IICA	1.022 (0.993-1.052)	0.143	1.067 (1.012-1.124)	0.015	0.618 (0.457-0.779)	0.136
R.M1	1.014 (0.997-1.03)	0.1	1.029 (1.006, 1.053)	0.015	0.595 (0.505-0.685)	0.032
VAD	1.052 (1.018-1.087)	0.003	1.06 (1.009-1.113)	0.021	0.628 (0.555-0.701)	<0.001
BA	1.007 (0.977-1.038)	0.65	1.002 (0.967-1.039)	0.903	0.523 (0.446-0.6)	0.555

The adjusted odd ratio and P value represent the results of multivariate logistic regression analysis. Variables entered into analysis include age, male, hypertension, diabetes, hyperlipidemia, smoking, alcohol abuse, LDL-C, C-reactive protein, homocysteine, fibrinogen, and proteinuria. AUC: area under the receiver operating characteristic curve; CI: confidence interval; OR: odds ratio.