Demographic information (n = 334)
| Training Set (n= 196) | Testing Set (n = 138) | P Value | |
|---|---|---|---|
| Age (yr) | 69.0 ± 10.1 | 69.5 ± 9.5 | .61 |
| Male sex (%) | 74.0 | 76.1 | .70 |
| History of | |||
| Hypertension (%) | 79.1 | 75.2 | .43 |
| Diabetes mellitus (%) | 20.4 | 27.5 | .15 |
| Coronary artery disease (%) | 34.3 | 39.3 | .41 |
| Smoking status | |||
| Never (%) | 28.2 | 31.9 | .59 |
| Quit (%) | 49.7 | 44.2 | |
| Current (%) | 22.1 | 23.9 | |
| Imaging center | |||
| AH (%) | 19.9 | 21.7 | .27 |
| MSU (%) | 21.4 | 13.0 | |
| PLA (%) | 13.8 | 15.9 | |
| UW (%) | 44.9 | 49.3 | |
| Intraplaque hemorrhage (%) | 24.0 | 19.6 | .35 |
| Fibrous cap rupture (%) | 7.1 | 10.9 | .24 |
| Min lumen area (mm2) | 17.2 ± 10.4 | 17.9 ± 9.1 | .51 |
| Max wall area (mm2) | 61.1 ± 21.6 | 63.8 ± 24.5 | .29 |
| Max total vessel area (mm2) | 113.0 ± 35.7 | 117.4 ± 38.3 | .29 |
| Max wall thickness (mm2) | 3.93 ± 1.79 | 4.00 ± 1.70 | .72 |
| Max normalized wall index | 0.696 ± 0.139 | 0.674 ± 0.142 | .16 |
| Presence of calcification (%) | 72.4 | 73.9 | .80 |
| Max percentage calcification (%)a | 14.7 ± 10.4 | 16.1 ± 10.7 | .31 |
| Presence of LRNC (%) | 59.7 | 63.7 | .49 |
| Max percentage LRNCa (%) | 35.8 ± 18.3 | 31.3 ± 17.9 | .09 |
| MRA stenosis (%) | 47.6 ± 29.3 | 48.8 ± 32.4 | .83 |
a Only for arteries with calcification (n= 244) or LRNC (n = 206) present.