Echocardiographic predictors of early in-hospital heart failure during first ST-elevation acute myocardial infarction: does myocardial performance index and left atrial volume improve diagnosis over conventional parameters of left ventricular function?

Table 4 Logistic regression model with interaction analysis

Variable	Regression Coefficient	Standart Error	p
Constant	-3.1329	0.8195	0.1553
LVEF	2.8343	0.7275	0.0001
Age	-0.6230	1.0350	0.5472
MPI	-0.1780	0.8612	0.8362
MPI * Age	3.2431	1.3921	0.0198

Legend: LVEF: left ventricular ejection fraction; MPI: myocardial performance index, MPI*Age: interaction between variables MPI and age.

ISSN: 1476-7120