Left ventricular diastolic dysfunction index based on non-invasive measurements

Table 1 Summary of stepwise selection

Step	Variable		Degrees of Freedom	Number In	Chi-Square Score	Wald Chi-Square	P value
	Entered	Removed
1	Peak -dφ_hat/dV_hat		1	1	2.45		0.1174
2	Torsion Hysteresis Area		1	2	5.32		0.0211
3	E/A		1	3	5.08		0.0242
4	Mean E/e'		1	4	2.66		0.1031
5		Mean E/e'	1	3		1.29	0.2552

ISSN: 1532-429X