Relationship between coronary calcium score and high-risk plaque/significant stenosis

Table 2 Incidence of high-risk plaque among the four groups n (%)

CCS	0	1-100	101-400	> 400	P
n	154	198	165	134
High-risk plaque	2 (1.3)b	20 (10.1)	22 (13.3)	18 (13.4)	0.0171
Positive remodeling	2 (1.3)d	20 (10.1)	21 (12.7)	18 (12.7)	< 0.001
Low attenuation plaque	0 (0)e	7 (3.5)	4 (2.4)	1 (0.7)	0.0217
Spotty calcification	0 (0)h	13 (6.6)	11 (6.7)	8 (6.0)	< 0.001
Napkin-ring sign	0 (0)i	7 (3.5)	2 (1.2)	1 (0.7)	0.0474
Multiple plaques	0 (0)	4 (2.0)	3 (1.8)	3 (2.2)	0.166
%APV	30.5 ± 24.3	42.5 ± 9.0	44.8 ± 9.2	42.2 ± 7.8	0.2537

^bP = 0.0016 compared with group with CCS 1-100;

^dP = 0.0016 compared with group with CCS 1-100;

^eP = 0.0486 compared with group with CCS 1-100;

^hP = 0.0031 compared with group with CCS 1-100;

ⁱP = 0.0486 compared with group with CCS 1-100. CCS: Coronary calcium score; %APV: Percent aggregate plaque volume.