Table 2.

Multivariable Cox Proportional Hazards Regression Model for Predicting 2‐Year Mortality

Variable	Β Coefficient	HR (95% CI)	P Value
Age (decade)a	0.358	1.431 (1.229–1.665)	<0.001
NYHA class II or higher	0.487	1.628 (1.088–2.437)	0.018
Heart rate ≥80 beats/min	0.592	1.808 (1.169–2.796)	0.008
QRS duration ≥150 ms	0.486	1.626 (1.070–2.470)	0.023
Abnormal NT‐proBNPb	1.772	5.885 (3.931–8.812)	<0.001

HR indicates hazard ratio; NT‐proBNP, N‐terminal pro‐brain natriuretic peptide; NYHA, New York Heart Association.

^aHR for each 10‐year increase in age.

^bNT‐proBNP was considered abnormal by age range as follows: <50 years=NT‐proBNP >450 pg/mL; 50–75 years=NT‐proBNP >900 pg/mL; >75 years=NT‐proBNP=1800 pg/mL.