Table 3 Comparison of coronary artery disease between different grades of SCH
|  | All patients (n = 234) | Mild SCH (n = 143) | Moderate SCH (n = 62) | Severe SCH (n = 28) | p value |
|---|---|---|---|---|---|
Types of plaque | |||||
 Calcified plaque | 1.7 ± 1.8 | 2.0 ± 1.9 | 1.4 ± 1.6 | 0.7 ± 0.9* | < 0.001 |
 Mixed plaque | 1.3 ± 1.6 | 1.4 ± 1.9 | 1.1 ± 1.6 | 1.5 ± 1.7 | 0.302 |
 Non-calcified plaque | 0.4 ± 0.7 | 0.3 ± 0.5 | 0.5 ± 0.7 | 0.9 ± 1.0* | < 0.001 |
Grading of stenosis | |||||
 Minimal stenosis | 1.1 ± 1.3 | 1.2 ± 1.4 | 1.2 ± 1.5 | 0.5 ± 0.8*# | 0.021 |
 Mild stenosis | 1.4 ± 1.4 | 1.4 ± 1.5 | 1.2 ± 1.4 | 1.8 ± 1.2*# | 0.001 |
 Moderate stenosis | 0.6 ± 0.7 | 0.6 ± 1.0 | 0.5 ± 0.9 | 0.6 ± 0.8 | 0.848 |
 Severe stenosis | 0.2 ± 0.5 | 0.2 ± 0.5 | 0.2 ± 0.6 | 0.1 ± 0.2 | 0.069 |
Obstructive stenosis | 0.4 ± 0.4 | 0.4 ± 0.5 | 0.4 ± 0.5 | 0.5 ± 0.5 | 0.831 |
SIS | 3.5 ± 2.4 | 3.7 ± 2.4 | 2.9 ± 2.4 | 3.0 ± 1.8 | 0.084 |
SSS | 6.8 ± 6.0 | 7.4 ± 6.4 | 5.4 ± 5.6 | 6.0 ± 3.5 | 0.092 |