Table 4.

Candidate Predictor Variables for the Peak VO2 and V_E/V_CO2 Multivariable Models

gender diabetes (history of) stroke (history of) hypertension (history of) prior CABG prior valve surgery prior PCI prior MI peripheral vascular disease (history of) COPD (history of) depression (history of) atrial fib./flutter (history of) permanent pacemaker cardiac resynchronization therapy ACE inhibitor at baseline beta blocker at baseline etiology of heart failure CPX mode (treadmill or bicycle) heart failure hospitalizations in the last 6 months (0, 1, 2, or 3+) region (4 regions of US, Canada, or France) race (African American, White, or Other) NYHA class (II vs. III/IV) at baseline CCS angina class at baseline rest ECG ventricular conduction prior to baseline CPX test (normal, LBBB, RBBB, IVCD, or paced) rest ECG rhythm prior to baseline CPX test (sinus, a fib, or other) smoking status (never, current, or past) diastolic BP systolic BP BMI resting HR (clinic visit) resting HR (CPX test) LVEF age