Table 1. Baseline demographics of local cohort.

Baseline demographics (n=65)	Mean ± SD or frequencies (%)
Age (years)	61.7±9.7
Male	44 (67.7)
Smoker	30 (46.1)
HT	49 (75.4)
DM	5 (7.7)
Dialysis dependent chronic renal failure	2 (2.8)
Maximal aortic diameter (mm)	47.3±7.1
Intramural hematoma thickness in ascending aorta (mm)	13.5±7.8
Penetrating aortic ulcer/ulcer like projection	29 (44.6)
Penetrating aortic ulcer in arch/descending aorta	54 (83.5)
Penetrating aortic ulcer below diaphragm	8 (12.5)
Penetrating ulcer in ascending aorta	3 (4.6)
Aortic regurgitation/tamponade/malperfusion on presentation	2 (3.0)
Operation within 24 hours	26 (40.0)
Operation within 1 week	28 (43.1)
Operation within 1 month	38 (58.4)