Table III.
Baseline Demographics of Patients in the International Registry of Aortic Dissension Based on Age Categories of >40 and ≥40 Years of Age (n [%])*
| Variables | Age <40 YR (n=68) | AGE ≥40 yr (n=883) | p Value |
|---|---|---|---|
| Age (yr) (mean ± SD) | 30.7±6.6 | 63.9±11.5 | NA |
| Type of dissection | |||
| Type A | 46 (68) | 574 (65) | NS |
| Type B | 22 (32) | 309 (35) | |
| Male gender | 52 (76) | 596 (67) | NS |
| White race | 55 (81) | 699 (79) | NS |
| Diabetes | 0 (0) | 38 (4) | NS |
| Hypertension | 23 (34) | 635 (72) | <0.0001 |
| Atherosclerosis | 1 (1) | 267 (30) | <0.0001 |
| Marfan's syndrome | 34 (50) | 19 (2) | <0.001 |
| Prior aortic valve disease | 7 (10) | 74 (8) | NS |
| Bicuspid aortic valve (n=516) | 6 (9) | 12 (1) | <0.001 |
| Known aortic aneurysm | 13 (19) | 115 (13) | NS |
| Prior aortic dissection | 5 (7) | 50 (6) | NS |
| Prior aortic valve replacement | 8 (12) | 40 (5) | 0.008 |
| Prior coronary artery bypass grafting | 0 (0) | 51 (6) | 0.04 |
| Peripartum aortic dissection | 2 (3) | 0 (0) | <0.001 |
| Cocaine‐related aortic dissection | 0 (0) | 5 (0.6) | NS |
| Other aortic disease | 2 (3) | 10 (1) | NS |
| Iatrogenic aortic dissection | 0 (0) | 36 (4) | NS |
| NA=not applicable; NS=nonsignificant; *except where indicated otherwise. Reprinted with permission from J Am Coll Cardiol. 2004;43:665–669. 4 | |||