A Predictive Model for Super-Response to Cardiac Resynchronization Therapy: The QQ-LAE Score

Table 2

Predictors of CRT super-response, and uni- and multivariate logistic regression models.

	Univariate		Multivariate
	OR (95% CI)	-value	β	OR (95% CI)	value
Sex (female)	1.76 (1.12–2.78)	0.014
History of HF ≤ 96 months	2.01 (1.14–3.55)	0.016
Nonischemic etiology	2.03 (1.07–3.88)	0.031
Prior no AF	2.82 (0.96–8.27)	0.058
Prior no frequent PVCs	1.86 (1.19–2.92)	0.007
Prior no fragmented QRS	2.57 (1.33–4.97)	0.005	1.131	3.10 (1.39–6.94)	0.006
LBBB	3.93 (1.73–8.89)	0.001	0.933	2.57 (1.04–6.37)	0.042
QRS duration ≥170 ms	1.97 (1.22–3.18)	0.006	0.862	2.37 (1.35–4.12)	0.003
Prior no MI	2.59 (1.13–5.97)	0.025
LVEDD <75 mm	3.31 (1.82–6.01)	<0.001	1.407	4.11 (1.99–8.48)	<0.001
LAD <45 mm	3.63 (2.15–6.12)	<0.001	1.179	3.27 (1.81–5.89)	<0.001

CI, confidence interval; OR, odds ratio; β, β partial regression coefficient. AF, atrial fibrillation; CRT, cardiac resynchronization therapy; HF, heart failure; LAD, left atrial diameter; LBBB, left bundle branch block; LVEDD, left ventricular end-diastolic diameter; MI, myocardial infarction; PVCs, premature ventricular contractions.