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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Circ Heart Fail. 2014 May 15;7(4):580–589. doi: 10.1161/CIRCHEARTFAILURE.114.001192

Table 4. Age, sex, BMI, hemoglobin and chronotropic index association with pVO2 Regression coefficients with 95% confidence intervals are shown.

Peak VO2 indexed to weight (ml/kg/min) N=212; Model R2 = 0.49
Regression Coefficient (ml/kg/min) Confidence interval P-value
Age (per year) -0.11 -0.15, -0.08 <0.001
Sex (women vs men) -1.88 -2.50, -1.27 <0.001
BMI (per kg/m2) -0.11 -0.15, -0.06 <0.001
Hemoglobin (per g/dl) 0.58 0.37, 0.79 <0.001
Chronotropic index (per 0.1) 0.36 0.25, 0.47 <0.001
Peak VO2 (ml/min) N=212; Model R2 = 0.64
Regression Coefficient (ml/min) Confidence interval P-value
Age (per year) -12.73 -16.81, -8.66 <0.0001
Sex (women vs men) -391.87 -465.58, -318.16 <0.0001
BMI (per kg/m2) 20.22 14.59, 25.85 <0.0001
Hemoglobin (per g/dl) 68.72 43.67, 93.78 <0.0001
Chronotropic index (per 0.1) 40.47 27.11, 53.83 <0.0001