Table 4.

Logistic regression analysis: predictors of left ventricular dilatation

	Univariate		Multivariate
Variable	Wald χ2	p Value	Wald χ2	p Value
Number of pathological Q waves*	13.12	0.0003	5.6	0.018
Peak creatine kinase (IU/l)	9.57	0.0020	–	NS
Peak MB fraction (IU/l)	8.69	0.0032	–	NS
ACE inhibitors at hospital discharge	4.69	0.0304	–	NS
Resting echo
End diastolic volume index (ml/m2)	–	NS	–
End systolic volume index (ml/m2)	4.52	0.0335	–	NS
Ejection fraction (%)	12.93	0.0003	–	NS
Wall motion score index	12.18	0.0005	–	NS
Number of akinetic segments	8.05	0.0046	–	NS
Low dose dobutamine echocardiography
Wall motion score index	16.65	0.0000	6.2	0.013
Number of akinetic segments	12.27	0.0005	–	NS
Myocardial viability	7.36	0.0067	5.2	0.023

*On the ECG at hospital discharge.