Table 2.

Characteristics of subjects and carotid plaque.

Characteristics of subjects with plaque (n)	177
Mean number of plaques, n	1.66 ± 0.76
Carotid plaque score	3.67 ± 1.96
Single plaque, n (%)	92 (52)
Multiple plaques, n (%)	85 (48)
Two plaques, n (%)	54 (30.5)
Three plaques, n (%)	31 (17.5)
Characteristics of plaque (n)	293
Site
Common carotid artery, n (%)	72 (24.6)
Right/left (n)	36/36
Carotid bulb, n (%)	190 (64.8)
Right/left (n)	92/98
Internal carotid artery, n (%)	26 (8.9)
Right/left (n)	15/11
External carotid artery, n (%)	5 (1.7)
Right/left (n)	3/2
Size
Thickness (mm)	2.25 ± 0.69
Width (mm)	12.04 ± 6.10
Stenosis (%)	30.5 ± 12.7
Echogenicity
Hypoechoic, n (%)	42 (14.3)
Isoechoic, n (%)	203 (69.3)
Hyperechoic, n (%)	48 (16.4)
Ulceration, n (%)	6 (2.0)
Irregularity, n (%)	61 (20.8)

Continuous variables are shown as mean ± standard deviation, and categorical variables are shown as absolute number and proportions.