Speckle tracking echocardiography analyses of myocardial contraction efficiency predict response for cardiac resynchronization therapy

Table 4 Logistic regression for CRT response

Variable	OR(95% CI)	Wald X²	p value
Binary logistic regression
ECTR	0.928(0.887~ 0.972)	10.030	0.002
ECR	0.943(0.904~ 0.983)	7.692	0.006
MLS	1.257(1.014~ 1.557)	4.349	0.037
Multinomial logistic regression (p = 0.012)
ECR	0.867(0.775~ 0.969)	6.264	0.012
MLS	2.219(1.364~ 3.612)	10.299	0.001

ECTR the ratio of effective contractile time, ECR the ratio of effective contraction, MLS maximum longitudinal strain

ISSN: 1476-7120