Table 1. Patient demographics in 72 patients of type A IMH and 209 patients of type A AAD.
| Clinical manifestations | Type A IMH (n=72) | Type A AAD (n=209) | P | V |
|---|---|---|---|---|
| Gender, male/female | 40/32 | 151/58 | 0.009 | 6.855 |
| Age, year | 58.6±11.3 [33–82] | 49.4±12.8 [14–79] | <0.001 | 0.770 |
| Risk factors, n (%) | ||||
| Hypertension | 62 (86.1) | 162 (77.5) | 0.192 | 1.7 |
| Diabetes | 6 (8.3) | 12 (5.7) | 0.439 | 0.6 |
| Dyslipidemia | 7 (9.7) | 14 (6.7) | 0.4 | 0.708 |
| Smoking | 33 (45.8) | 80 (38.3) | 0.259 | 1.271 |
| Atherosclerotic heart disease | 14 (19.4) | 33 (15.8) | 0.474 | 0.514 |
| Marfan syndrome | 0 | 24 (11.5) | 0.003 | 9.04 |
| Pregnancy | 0 | 5 (2.4) | 0.185 | 1.754 |
| Bicuspid aortic valve | 1 (1.4) | 8 (3.8) | 0.311 | 1.027 |
| Symptoms, n (%) | ||||
| Chest pain | 67 (93.1) | 177 (84.7) | 0.07 | 3.279 |
| Back pain | 45 (62.5) | 120 (57.4) | 0.45 | 0.571 |
| Cardiac arrest | 2 (2.8) | 7 (3.3) | 0.812 | 0.56 |
| Abdominal pain | 4 (5.6) | 16 (7.7) | 0.55 | 0.357 |
| Limb ischemia | 2 (2.8) | 25 (12) | 0.023 | 5.201 |
| Syncope | 3 (4.2) | 17 (8.1) | 0.259 | 1.275 |
IMH, intramural hematoma; AAD, acute aortic dissection.