Table 1.

Baseline characteristics

	Healthy Subgroup (n = 557)
Demographics
Age (years)	49.6 ± 3.6
Women (%)	343 (61.6)
White (%)	387 (69.5)
Clinical characteristics
Body mass index (Kg/m2)	24.7 ± 2.9
Body surface area (m2)	2.6 ± 0
Heart Rate (bpm)	64 ± 9
Systolic blood pressure (mmHg)	111 ± 11
Diastolic blood pressure (mmHg)	67 ± 9
Glucose (mg/dL)	90 ± 8
Total Cholesterol (mg/dL)	191 ± 32
HDL cholesterol (mg/dL)	67 ± 17
Triglycerides (mg/dL)	76 ± 27
Echocardiographic parameters
Left ventricular mass index (g/m2)	78 ± 17
Left ventricular ejection fraction (%)	62 ± 6
Peak systolic strain (%)
Longitudinal (four-chamber)	−15.9 ± 2.2
Longitudinal (two-chamber)	−16.6 ± 2.4
Circumferential	−15.7 ± 2.6
Radial	36.6 ± 11.0
Systolic strain rate (1/s)
Longitudinal (four-chamber)	−0.68 ± 0.10
Longitudinal (two-chamber)	−0.70 ± 0.11
Circumferential	−0.70 ± 0.13
Radial	1.69 ± 0.54
Early diastolic strain rate (1/s)
Longitudinal (four-chamber)	0.88 ± 0.23
Longitudinal (two-chamber)	0.99 ± 0.26
Circumferential	0.84 ± 0.30
Radial	−2.30 ± 1.19
Late diastolic strain rate (1/s)
Longitudinal (four-chamber)	0.54 ± 0.21
Longitudinal (two-chamber)	0.52 ± 0.20
Circumferential	0.44 ± 0.25
Radial	−1.24 ± 0.98

Continuous variables and categorical variables are expressed as mean ± SD and n (%) respectively. HDL=high-density lipoprotein.