Table 1. Characteristics of Dissection, Non-dissecting Aneurysm Cases, and Controls.
| Characteristics | Dissection (n = 140) | Non-dissecting aneurysm (n = 497) | Control (n = 275) | p Value* | p Value† |
| Age, yrs | 63±13.1 | 64±13.8 | 57±15.2 | 0.001 | <0.0001 |
| Male, n (%) | 85 (60.7) | 344(69.2) | 107(39.2) | <0.0001 | <0.0001 |
| Smoking status, n (%) | 69 (49.3) | 185 (37.3) | 91 (35.7) | 0.01 | 0.69 |
| Hypertension, n (%) | 113 (81.3) | 352 (71.0) | 98 (38.0) | <0.0001 | <0.0001 |
| Center, n (%) | <0.0001 | <0.0001 | |||
| US (Yale) | 100 (71.4) | 347 (69.8) | 69 (25.1) | ||
| Hungary | 28 (20.0) | 86 (17.3) | 111 (40.4) | ||
| Greece | 12 (8.6) | 64 (12.9) | 95 (34.6) |
*P value for Dissection cases vs. controls;
†
P value for Non-dissecting aneurysm cases vs. controls.
Data presented as mean ± standard deviation for age and as a number (%) of subjects for other variables.
P values are from Fisher exact test, except those for age, which are from the Wilcoxon rank sum test.