Table 3. Coronary Artery Disease Burden on CCTA Between Black and White Persons.
| Variables | Participants, No. (%) | P valuea | ||
|---|---|---|---|---|
| All (N = 3323) | Black (n = 370) | White (n = 2953) | ||
| CAC score | ||||
| 0 | 1289 (38.8) | 203 (54.9) | 1086 (36.8) | <.001 |
| 1-100 | 990 (29.8) | 90 (24.3) | 900 (30.5) | |
| 101-400 | 589 (17.7) | 47 (12.7) | 542 (18.4) | |
| >400 | 455 (13.7) | 30 (8.1) | 425 (14.4) | |
| >0 | 2034 (61.2) | 167 (45.1) | 1867 (63.2) | <.001 |
| >100 | 1044 (31.4) | 77 (20.8) | 967 (32.7) | <.001 |
| >400 | 455 (13.7) | 30 (8.1) | 425 (14.4) | .001 |
| Stenosis | ||||
| None (0%) | 1123 (33.8) | 171 (46.2) | 952 (32.2) | <.001 |
| Mild (1%-49%) | 1738 (52.3) | 167 (45.1) | 1571 (53.2) | |
| Moderate (50%-69%) | 260 (7.8) | 17 (4.6) | 243 (8.2) | |
| Severe (≥70% or ≥50% left main) | 202 (6.1) | 15 (4.1) | 187 (6.3) | |
| Stenosis ≥50% (moderate + severe) | 462 (13.9) | 32 (8.6) | 430 (14.6) | .001 |
| Plaque | ||||
| None | 1123 (33.8) | 171 (46.2) | 952 (32.2) | <.001 |
| Calcified only | 275 (8.3) | 29 (7.8) | 246 (8.3) | .84 |
| Noncalcified only | 117 (3.5) | 23 (6.2) | 94 (3.2) | .006 |
| Calcified and noncalcified | 1808 (54.4) | 147 (39.7) | 1661 (56.2) | <.001 |
| High-risk plaque feature present | 1686 (50.7) | 139 (37.6) | 1547 (52.4) | <.001 |
Abbreviations: CAC, coronary artery calcium; CCTA, coronary computed tomography angiography.
a
Fisher exact test comparing CCTA features between Black and White persons.