Table 1.

Clinical data of both cohorts.

Clinical data	Group 1 (n=25)	Group 2 (n=25)	P
Age	45±12	63±15	0.37
Male	16 (64%)	11 (44%)	0.13
Female	9 (36%)	14 (56%)	0.13
Smoker	6 (24%)	7 (28%)	0.71
Alcohol consumption	0 (0%)	0 (0%)	NS
Arterial hypertension	5 (20%)	11 (44%)	0.41
Coronary heart disease	0 (0%)	2 (8%)	0.15
Pulmonary embolism	0 (0%)	1 (4%)	0.31
Diabetes mellitus type 2	0 (0%)	5 (20%)	0.16
Peripheral arterial disease	0 (0%)	2 (8%)	0.15
Hypercholesterinemia	0 (0%)	2 (8%)	0.15
Chronic obstructive pulmonary disease	0 (0%)	4 (16%)	0.34
β-blocker therapy	10 (0%)	7 (28%)	0.29
Ace-inhibitor therapy	11 (0%)	5 (20%)	0.29
Calcium antagonist therapy	0 (0%)	2 (8%)	0.15