Table 3.

Comparison of HRs for all-cause mortality between low, moderate and higher sCRF participants at CR entry (n=670)

All-cause mortality (n=206 deaths)	Low sCRF* (referent) (n=128)	Moderate sCRF HR (95% CI) (n=317)	p Value	Higher sCRF† HR (95% CI) (n=225)	p Value
Model 1: unadjusted	1.00	0.50 (0.37 to 0.68)	<0.0005	0.25 (0.17 to 0.37)	<0.0005
Model 2: adjusted for age	1.00	0.55 (0.40 to 0.75)	<0.0005	0.35 (0.23 to 0.53)	<0.0005
Model 3: adjusted for covariates	1.00	0.59 (0.42 to 0.83)	0.002	0.40 (0.25 to 0.64)	<0.0005

Model 3 covariates were as follows: age; ACE-inhibitor, statin, diuretic, antiplatelet therapy use; diabetes, other CVD, waist circumference, TC/HDL ratio, date of CR entry, marital status, physical inactivity, resting heart rate, exercise test mode and negative exercise test (ECG).

*Entry sCRF level <6 METs (men) and <5 METs (women) at CR entry.

†Entry sCRF level ≥8 METs (men) and ≥7 METs (women) at CR entry.

CVD, cardio vascular disease; CR, cardiac rehabilitation; METs, metabolic equivalents; TC/HDL, total cholesterol high-density lipoprotein ratio; sCRF, submaximal cardiorespiratory fitness.