Table 1:
Characteristics of the Study Sample
| All (N=19,725) |
Females (N=5,403) |
Males (N=14,322) |
White Females (N=3,691) |
White Males (N=11,352) |
Black Females (n=1,363) |
Black Males (N=1,9653 |
|
|---|---|---|---|---|---|---|---|
| Age, mean (SD) | 41 (3.3) | 41 (3.2) | 41 (2.9) | 41 (3.2) | 41 (3.1) | 40 (3.7) | 41 (3.4) |
| Race, n (%) | |||||||
| • White | 15,043 (76) | 3,691 (68) | 11,352 (79) | - | - | - | - |
| • Black | 3,316 (17) | 1,363 (25) | 1,953 (14) | - | - | - | - |
| CAC Score, mean (SD) | 14 (91) | 5 (70) | 18 (98) | 6 (81) | 17 (93) | 3 (20) | 12 (91) |
| CAC Group, n (%) | |||||||
| • CAC=0 | 15,655 (79) | 4,921 (91) | 10,734 (73) | 3,424 (93) | 8,668 (74) | 1,272 (93) | 1,650 (84) |
| • CAC >0 | 4,070 (21) | 482 (9) | 3,588 (25) | 362 (10) | 3,026 (26) | 95 (7) | 311 (16) |
| • CAC 1–10 | 1,671 (8) | 222 (4) | 1,449 (10) | 169 (5) | 1,218 (10) | 46 (3) | 136 (7) |
| • CAC 11–100 | 1775 (9) | 203 (4) | 1,572 (11) | 152 (4) | 1,334 (11) | 38 (3) | 128 (6) |
| • CAC >100 | 624 (3) | 57 (1) | 567 (4) | 41 (1) | 474 (4) | 11 (1) | 47 (2) |
| Hypertension, n (%) | 3123 (16) | 703 (13) | 2420 (17) | 406 (11) | 1,762 (15) | 240 (18) | 492 (26) |
| Hyperlipidemia, n (%) | 8155 (41) | 1,926 (36) | 6,229 (44) | 1,333 (36) | 5,101 (44) | 511 (38) | 810 (41) |
| Smoking*, n (%) | 1,988 (10) | 683 (13) | 1,304 (9.1) | 402 (11) | 946 (8) | 265 (19) | 290 (15) |
| Diabetes, n (%) | 572 (3) | 190 (3.5) | 382 (3) | 125 (3) | 246 (2) | 55 (4) | 97 (5) |
*
Recorded as current smoking in CARDIA and CAC Consortium, ever smoking in Walter Reed Cohort