Prediction of response to cardiac resynchronization therapy using left ventricular pacing lead position and cardiovascular magnetic resonance derived wall motion patterns: a prospective cohort study

Table 4 Predictors of echocardiographic response

	Univariate			Multivariate
Variable	Odds ratio	95 % confidence interval	P value for logistic regression	Odds ratio	95 % confidence interval	P value for logistic regression^a
NICM	11	1.2-109	0.036	3.1	0.3-37	0.36
Favorable ECG^b	2.8	0.6-12	0.18	3.0	0.5-19	0.25
T2CL	22	2.3-206	0.007	18	1.6-206	0.018

^aNo significant difference with 1000 sample bootstrapped multivariate logistic regression analysis
(p = 0.012 for T2CL, p = non-significant for all others)
^bA favorable ECG pattern is indicated by the presence of a true left bundle branch block and a QRS duration > 150 ms
ECG = Electrocardiogram; NICM = Non-Ischemic Cardiomyopathy; T2CL = Type II wall motion pattern and a concordant left ventricular lead

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