Table 1. Demographic and clinical characteristics of patients.

	Group A (n=20)			Group B (n=20)			Group C (n=20)
	n	%	Mean±SD	n	%	Mean±SD	n	%	Mean±SD	p
Age (year)			59.5±3.5			60.7±2.3			61.6±1.3	0,5
Gender
Male	12	60		11	55		13	65		0,5
Female	8	40		9	45		7	35		0,53
Body surface area (m2)			1.9±0.1			1.9±0.2			1.9±0.1	0,6
Ejection fraction			59.1±1.9			56.1±1.9			59±1.9	0,73
LVEDP			10.5±2.4			10.1±1.4			10.6±3.1	0,5
VPS			9.7±1.2			9.8±1.1			9.8±1.3	0,47
NYHA score			2.1±0.8			2.0±0.7			2.1±0.9	0,55
Hypertension	9	45		10	50		8	40		0,52
Diabetes mellitus	5	25		6	30		4	20		0,5
Smoking habit	8	40		7	35		7	35		0,5
LVEDP: Left ventricular end diastolic pressure; VPS: Ventricular performance index; NYHA: New York Heart Association.