Table 3.

Predictors of high-risk plaque.

	B (95% CI of B)	β	p value
A. The highest quartile of cPS
Age (years)	0.052 (0.035-0.069)	0.255	<0.001
HbA1c (%)	0.182 (0.058-0.306)	0.121	0.004
Gender (male = 1, female = 0)	0.477 (0.138-0.816)	0.118	0.006
Hypertension (mmHg)	0.369 (0.031-0.707)	0.090	0.032
A-1. For diabetic patients
Age (years)	0.054 (0.028-0.081)	0.239	<0.001
HbA1c (%)	0.265 (0.087-0.443)	0.170	0.004
Hypertension (mmHg)	0.683 (0.179-1.188)	0.154	0.008
	OR	95% CI of OR	p value
B. Irregular plaque
Two plaques (Ref. single plaque)	4.810	2.029-11.402	<0.001
Three plaques	8.621	3.272-22.716	<0.001
C. Hypoechoic plaque
≥70 years (Ref. 40-49 years)	0.186	0.050-0.692	0.012

(A) Multiple regression analysis. The predictors of the highest quartile of cPS. (A-1) The predictors of the highest quartile of cPS for diabetic patients. Higher HbA1c was a strong predictor. (B, C) Multivariate logistic regression analysis. cPS: carotid plaque score; HbA1c: glycated hemoglobin; B: unstandardized coefficient; β: standardized beta; OR: odds ratio; CI: confidence interval.