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

Table 4

AUC and cut-off value for LVEDD, QRS duration, and combination of LVEDD and QRS duration.

Variables	AUC	95% CI	for AUC	Cut-off value	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
LVEDD (mm)	0.662	0.55–0.77	0.004	≤69	62	73	82	48
QRS duration (ms)	0.744	0.65–0.84	<0.001	≥166	62	82	88	51
Combination of LVEDD and QRS duration (mm, ms)	0.836	0.76–0.91	<0.001	LVEDD ≤ 71 and ≥170	65	97	98	57

LVEDD: left ventricular end-diastolic dimension; AUC: area under the curve; 95% CI: 95% confidence interval; PPV: positive prediction value; NPV: negative prediction value.