Combination of Left Ventricular End-Diastolic Diameter and QRS Duration Strongly Predicts Good Response to and Prognosis of Cardiac Resynchronization Therapy

Table 3

Univariate and backward stepwise multivariate logistic regression analyses with regard to predictors of response.

	Univariate analysis		Multivariate analysis
Baseline characteristics	OR (95% CI)	value	OR (95% CI)	value
Age	1.02 (0.97–1.06)	0.515
Sex	1.47 (0.61–3.57)	0.391
BNP	1.00 (1.00–1.00)	0.533
NYHA class	0.86 (0.45–1.66)	0.659
HF duration	1.00 (0.99–1.00)	0.196
Hypertension	1.27 (0.44–3.25)	0.653
CRD	0.72 (0.25–2.06)	0.536
ICM	1.20 (0.39–3.74)	0.753
LVEF	1.03 (0.93–1.13)	0.605
LAD	0.90 (0.83–0.98)	0.012	0.94 (0.85–1.04)	0.237
LVEDD	0.93 (0.88–0.99)	0.014	0.88 (0.81–0.95)	0.001
MR	0.96 (0.89–1.04)	0.293
QRS duration	1.05 (1.03–1.08)	<0.001	1.07 (1.04–1.10)	<0.001
LBBB	2.69 (1.14–6.33)	0.024	1.71 (0.60–4.88)	0.315

OR: odds ratio; 95% CI: 95% confidence interval. BNP: brain natriuretic peptide; NYHA: New York Heart Association; HF: heart failure; CRD: chronic renal dysfunction; ICM: ischemic cardiomyopathy; LVEF: left ventricular ejection fraction; LAD: left atrial dimension; LVEDD: left ventricular end-diastolic dimension; MR: mitral regurgitation; LBBB: left bundle branch block.