Table 3.

Independent predictors of use of β blockers

Variable	OR	95% CI	p Value
Age (as a continuous variable)	0.97	0.96 to 0.97	0.0001
NYHA class (III–IV v I–II)	0.62	0.51 to 0.75	0.0001
Systolic blood pressure (as a continuous variable)	1.02	1.01 to 1.02	0.0001
Heart rate (as a continuous variable)	1.01	1.01 to 1.02	0.0001
Ejection fraction (not available v available)	0.46	0.28 to 0.76	0.0022

CI, confidence interval; NYHA, New York Heart Association; OR, odds ratio.