Table 4. Correlation of changes in regional and global strain to changes in left ventricular ejection fraction expressed in percent changes from their respective baseline values .

		dEF	dGLs	dAPR	dMPR	dBR
dEF	Correlation Coefficient (R-Value)	1.00	0.441**	0.216	0.365**	0.272
	P value (2-tailed)		0.0003	0.0888	0.0033	0.0309
dGLs	Correlation Coefficient (R-Value)	0.441**	1.00	0.540**	0.647**	0.616**
	P value (2-tailed)	0.0003		<0.0001	<0.0001	<0.0001
dAPR	Correlation Coefficient (R-Value)	0.216	0.540**	1.00	0.558**	0.343**
	P value (2-tailed)	0.0888	<0.0001		<0.0001	0.0060
dMPR	Correlation Coefficient (R-Value)	0.365*	0.647**	0.558**	1.00	0.815**
	P value (2-tailed)	0.0033	<0.0001	<0.0001		<0.0001
dBR	Correlation Coefficient (R-Value)	0.272	0.616**	0.343**	0.815**	1.00
	P value (2-tailed)	0.0309	<0.0001	0.0060	<0.0001

*Correlation is significant at the 0.01 level (2-tailed).

**Correlation is significant at the 0.001 level (2-tailed).

Abbreviations: dEF: Percent deterioration in left ventricular ejection fraction; dGLs: Percent deterioration of left ventricular global strain; dAPR: Percent deterioration of left ventricular strain in apical region; dMPR: Percent deterioration of left ventricular strain in midpapillary region; dBR: Percent deterioration of left ventricular strain in basal region.