Table 4.

Odds ratios of cognitive impairment by echo character of plaques.

	Echo of plaques
	Without Plaque	Hyperechoic	Hypoechoic
Case number	1290	1722	104
Model 1*	1	1.20 (1.01–1.42)	2.21 (1.45–3.38)
Model 2†	1	1.20 (1.01–1.42)	2.29 (1.49–3.51)
Model 3‡	1	1.38 (1.13–1.67)	2.05 (1.24–3.38)

*Adjusted for age, sex. ^†Adjusted for as model 1 plus education level, marriage status, alcohol use, tobacco use, physical activity, hypertension, diabetes, hypercholesterolemia, atrial fibrillation and coronary artery disease. ^‡Adjusted for as model 2 plus NIHSS and TOAST. NIHSS: National Institutes of Health Stroke Scale; TOAST: Trial of Org 10172 in Acute Stroke Treatment.