Table 3

Independent variables and their association with left ventricular ejection fraction with multiple regression analysis ^3-150

	Regression coefficient	SE of regression coefficient	t Value
pRR	0.0092	0.00057	16.13
EDV	0.1771	0.00508	34.80
pESV	−0.2664	0.00724	−36.82
Afterload	−1.0475	0.05173	−20.25
Contractility	21.9391	0.46395	47.29
p-Contractility	−14.9105	0.52436	−28.44
EDV^3-150afterload	−0.0081	0.00071	−11.52
Intercept	37.1621	0.22925	162.10

↵3-150 p ⩽ 0.0001 for all comparisons.
Afterload, end systolic pressure/stroke volume; Contractility, end systolic pressure/end systolic volume; p-Contractility, preceding end systolic pressure/preceding end systolic volume; EDV, end diastolic volume; pESV, preceding end systolic volume; pRR, preceding RR interval.