Table 1.
Characteristics by race (mean ± SD, percentage, or count)
| Variables | Black (n = 1652) | White (n = 1898) | p-value |
|---|---|---|---|
| Year 15 Age, years | 40 ± 3.8 | 41 ± 3.4 | < 0.001 |
| Male, % | 681 (41) | 893 (47) | 0.005 |
| Internal Carotid IMT, mm | 0.95 ± 0.22 | 0.92 ± 0.22 | 0.003 |
| range, mm | 0.44-2.64 | 0.45-3.0 | |
| Common Carotid IMT, mm | 0.83 ± 0.13 | 0.77 ± 0.11 | < 0.001 |
| range, mm | 0.53-1.84 | 0.51-1.35 | |
| sICAM-1, ng/mL | 166 ± 50 | 146 ± 38 | < 0.001 |
| Year 15 Measurements | |||
| CAC Present (%) | 7.5 | 11.3 | < 0.001 |
| Range, Agatston Score | 0-2236 | 0-3521 | |
| Agatston Score Categories, n (%) | |||
| ▪ 0 | 1263 (92) | 1473 (89) | 0.004 |
| ▪ 1-100 | 85 (6) | 158 (10) | |
| ▪ 101-299 | 11 (1) | 22 (1) | |
| ▪ 300+ | 7 (1) | 7 (< 1) | |
| Year 20 Measurements | |||
| CAC Present (%) | 16.1 | 20.5 | 0.004 |
| Range, Agatston Score | 0-6057 | 0-5350 | |
| Agatston Score Categories, n (%) | |||
| ▪ 0 | 1112 (84) | 1323 (80) | 0.02 |
| ▪ 1-100 | 162 (12) | 259 (16) | |
| ▪ 101-299 | 37 (3) | 47 (3) | |
| ▪ 300+ | 14 (1) | 29 (2) |