Table 1.

Demographic and nosological characteristics of enrolled patients.

	AAD	Alternative diagnosis	P
N	52 (41.3%)	74 (58.7%)
	Stanford	Alternative diagnoses:
	classification:	- Uncomplicated aortic aneurysm (16)
	- type A AAD (32)	- Inflammatory disease (6)
	- type B AAD (20)	- Pneumonia (3), pericarditis (1), pancreatitis (1), urinary tract infection (1)
		- Acute coronary syndrome (5)
		- Other diagnoses (8)
		- Uncertain diagnoses (39)
Gender (M/F)	40/12	49/25	0.24
Age (years)	66.3 ± 1.9	64.0 ± 1.7	0.39
Hypertension	31 (59.6%)	44 (59.5%)	1.00
Diabetes	1 (1.9 %)	11 (14.9%)	0.02

Age is reported as mean ± standard deviation. P values are calculated with Fisher's exact test. AAD, acute aortic dissection.