Magnetic resonance imaging quantification of left ventricular mechanical dispersion and scar heterogeneity optimize risk stratification after myocardial infarction

Table 4 Univariable and multivariable cox regression analysis to predict primary combined endpointss

	Univariable Cox proportional hazards regression		Multivariable Cox proportional hazards regression
	HR(95% CI)	p-value	HR(95% CI)	p-value
LVEF (%)	0.963(0.941, 0.985)	0.001^*	0.986(0.957, 1.016)	0.351
IC%	1.009(0.991, 1.026)	0.330	——	——
IBZ%	1.008(0.992, 1.024)	0.328	——	——
BZ entropy	2.315(1.531, 3.500)	<0.001^*	1.708(0.943, 3.095)	0.078
IC entropy	2.045(1.264, 3.308)	0.004^*	0.710(0.412, 1.225)	0.219
IBZ entropy	1.428(1.966, 2.109)	0.074	——	——
LV entropy	1.238(0.951, 1.615)	0.113	——	——
GRS(%)	0.972(0.945, 1.001)	0.059	——	——
GCS(%)	0.987(0.956, 1.019)	0.424	——	——
GLS(%)	0.946(0.901, 0.994)	0.026^*	1.059(0.927, 1.209)	0.401
LVMD(ms)	1.019(1.012,1.027)	<0.001^*	1.014(1.003, 1.024)	0.010^*

^*p < 0.05 is accepted as statistically significant
LVEF, left ventricular ejection fraction; BZ, border zone; IC, infarct zone; IBZ, infarct zone and border zone; GRS, global radial strain; GCS, global circumferential strain; GLS, global longitudinal strain; LVMD, left ventricular mechanical dispersion

ISSN: 1471-2261