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. Author manuscript; available in PMC: 2020 Mar 24.
Published in final edited form as: Am J Cardiol. 2011 Apr 29;108(1):99–105. doi: 10.1016/j.amjcard.2011.02.349

Table 2.

Rates of change per year

Variable Rate of Change per Year of Follow-Up (Mean ± SD) p Value*
Peak oxygen consumption (ml/kg/min/year) −0.8 ± 3.1 <0.001
Peak percentage of predicted oxygen consumption (% points/year) −1.4 ± 9.2 0.04
Peak percentage of predicted oxygen pulse (% points/year) −1.8 ± 11.4 0.02
Slope of minute ventilation vs carbon dioxide production relation (change/year) −0.2 ± 3 0.38
Percentage of predicted forced vital capacity (% points/year) −0.3 ± 5.5 0.49
Percentage of predicted volume of air exhaled in first second of forced exhalation (% points/year) −0.1 ± 4.6 0.86
Heart rate at peak exercise (beats/min/year) −0.4 ± 11.3 0.60
Peak percentage of predicted heart rate (% points/year) 0.3 ± 5.8 0.40
Body mass index (kg/m2 per year) 0.4 ± 1.4 <0.001
Body mass index Z score (change/year) 0.02 ± 0.3 0.37
*

p Value from 1-sample t test comparing mean slope to 0.