Table 1: Baseline characteristics of the study population.

Baseline variablesTotal ( = 1545)Men ( = 1187)Women ( = 358) value

Age (yrs), M ± SD669 (9.0)65.8 ± 8.670.4 ± 9.4<0.001
History of PCI or CABG (%)496 (32.1)381 (32.1)115 (32.1)0.993
Hypertension (%)1352 (87.5)1015 (85.5)337 (94.1)<0.001
Diabetes (%) 548 (35.5)403 (34.0)145 (40.5)0.023
Hypercholesterolemia (%)1208 (78.2)925 (77.9)283 (79.1)0.652
Smoking (former or current) (%)1093 (70.7)917 (77.3)176 (49.2)<0.001
Renal failure (%)428 (27.7)262 (22.1)166 (46.4)<0.001
BMI >30 (%)417 (27.0)303 (25.5)114 (31.8)0.018
History of syncope (%)248 (16.1)166 (14.0)82 (22.9)<0.001
History of cerebrovascular event (%)180 (11.7)137 (11.5)43 (12.0)0.808
NYHA class III/IV (%)162 (10.5)111 (9.4)51 (14.2)0.008
LVEF <45 (%)311 (20.1)247 (20.8)64 (17.9)0.225
COPD (%)202 (13.1)150 (12.6)52 (14.5)0.200
Urgent/emergency procedure (%)386 (25.0)304 (25.6)82 (22.9)0.300
Bypass time >180 min., M ± SD95 (6.1)64 (5.4)31 (8.7)0.024
Off pump (%)55 (3.6)44 (3.7)11 (3.1)0.570

PCI: percutaneous coronary intervention; BMI: body mass index; LVEF: left ventricular ejection fraction; COPD: chronic obstructive pulmonary disease.