Table 1: Demography and preoperative parameters of 77 patients with aortic dissection type A in the winter season (from November to April).

Nonskiers ( )Skiers ( )P value

Age (years)58 (30–84)51 (36–79)0.128
Male gender46 (76.7%)15 (88.2%)0.299
Permanent residency height above sea level (m)574 (0–1247)170 (0–853)<0.001
Weight (kg)80 (45–110)90 (68–125)0.002
Size (cm)175 (157–191)180 (172–200)0.008
Body mass index (kg/m2)26 (18–34)28 (23–35)0.102
Marfan syndrome1 (2%)00.588
Pericardial effusion16 (26.7%)4 (23.5%)0.823
Patient intubated at time of admission 6 (10%)0 (0%)0.294
Aortic valve regurgitation II° or more24 (40%)5 (29.4%)0.520
Entry ascending aorta37 (61.7%)15 (88.2%)0.269
Entry aortic arch12 (20%)2 (11.8%)0.269
Entry unknown11 (18.3%)0 (0%)n.a.
Preoperative neurologic deficit 10 (16.7%)3 (17.6%)0.940
Coronary artery disease5 (8.3%)0 (0%)0.229
Peripheral vascular disease2 (3.3%)0 (0%)0.476
Arterial hypertension36 (60%)8 (47.1%)0.903