Disease-Specific Predictive Formulas for Energy Expenditure in the Dialysis Population Enric Vilar, PhD, Ashwini Machado, RN, Andrew Garrett, PhD, Robert.

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Presentation transcript:

Disease-Specific Predictive Formulas for Energy Expenditure in the Dialysis Population Enric Vilar, PhD, Ashwini Machado, RN, Andrew Garrett, PhD, Robert Kozarski, PhD, David Wellsted, PhD, Ken Farrington, MD Journal of Renal Nutrition Volume 24, Issue 4, Pages 243-251 (July 2014) DOI: 10.1053/j.jrn.2014.03.001 Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 1 Total energy expenditure in the study population was considered to be a combination of resting energy expenditure and exercise-related energy expenditure. Error bars shown represent the standard error of the means. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 2 Nonlinear relationship of REE and height. The shallow curve shows a nonlinear regression in the form REE = height2.023 + c (Equation 3). REE, resting energy expenditure. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 3 Nonlinear relationship of weight and REE. The curve shows a nonlinear regression in the form REE = weight0.629 + c (Equation 4). REE, resting energy expenditure. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 4 Relationship of age with REE. Using an age cutoff of ≥65 y, below this there was no significant relationship of REE with age. Above this cutoff, age correlated negatively with REE, with this relationship being linear. The linear regression line with 95% confidence interval is shown. REE, resting energy expenditure. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 5 Body mass index and its relationship with energy cost of a unitary 1 kg of body weight. REE, resting energy expenditure. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 6 Bland-Altman plot comparing measured REE with that predicted by Equation 6 in the study population (n = 200). Broken lines show bias, which was not significant, and the upper and lower 95% limits of agreement (see Table 5). REE, resting energy expenditure. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions

Figure 7 Bland-Altman plot comparing measured REE with that predicted by Equation 6 in the validation dataset (n = 20 patients). Broken lines show bias, which was not significant, and the upper and lower 95% limits of agreement. REE, resting energy expenditure. Journal of Renal Nutrition 2014 24, 243-251DOI: (10.1053/j.jrn.2014.03.001) Copyright © 2014 National Kidney Foundation, Inc. Terms and Conditions