Table 2.

Cardiac structural ECG parameters of the study population.

	Male			Female
	Young	Old	Pa	Young	Old	Pb
Sample size, n	13	13	–	13	6	–
LV mass, mg	76.84 ± 1.16	93.86 ± 2.34	0.000	61.07 ± 1.15	91.69 ± 5.69	0.000
LV mass/BW, mg/g	2.93 ± 0.06	2.85 ± 0.10	0.489	2.84 ± 0.04	3.24 ± 0.15	0.003
RWT	0.42 ± 0.01	0.46 ± 0.01	0.084	0.45 ± 0.02	0.51 ± 0.03	0.047
EDV, µL	61.18 ± 2.46	72.21 ± 4.08	0.028	47.10 ± 1.88	66.85 ± 3.18	0.000
ESV, µL	26.15 ± 1.23	32.24 ± 2.61	0.042	21.22 ± 0.96	30.49 ± 1.31	0.000
SV, µL	35.04 ± 1.84	39.97 ± 2.17	0.106	25.88 ± 1.30	36.37 ± 1.97	0.000

^aBetween young and old males; ^bbetween young and old females.

BW body weight; RWT relative wall thickness; EDV end-diastolic volume; ESV end-systolic volume; SV stroke volume.