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Resting energy expenditure
Table 4: Continuation
Equations based on FM/FFM of ADULTS
MullerBMI30ffm10 (22) MullerTotffm11 (22) Lazzer07ffm10 (30,31) MullerBMI2530ffm10 (22) Johnstoneffm11 (36) Korthffmbia11 (26) Huangffm10 (34) Mifflinffm11 (33)
1826 220 73 1818 213 71 1808 297 64 1766 175 64 1824 264 62 1750 261 50 1733 231 49 1500 202 13
17 10
20 9
30 7
30 6
24 14
41 9
46 5
87 0 -19.8
-23.7 28.8 186 -24.6 29.2 190 -25.2 25.2 206 -28.5 30.1 225 -23.3 32.4 212 -24.4 26.6 243 -27.9 19.4 234 -35.4 8.0 434
1FM, fat mass; 2As measured; 3The percentage of subjects predicted by this predictive equation within 10% of the measured value; 4The percentage of subjects predicted by this predictive equation <10% of the measured value; 5The percentage of subjects predicted by this predictive equation > 10% of the measured value; 6Mean percentage error between the predictive equation and the measured value; 7The largest underprediction found with this predictive equation as a percentage of the measured value; 8The largest overprediction found with this predictive equation as a percentage of the measured value; 9Equation based on both normal-weight and obese persons; 10Equation based on obese persons; 11Equation based on normal-weight persons.
The percentage of accurate predictions, percentage bias, and RMSE for the total group of adolescents by sex and ethnicity for equations based on children and adolescents are shown in Figure 1.
For the total group of adolescents, the Molnar equation had the smallest RMSE (174 kcal/day), 74% accurate predictions (with 16% underprediction and 9% overprediction), and a small bias (-1.2%). The Schofield weight and height equations for 18-30 years provided 74% accurate predictions, 8% underpredictions, 17% overpredictions, a bias of 2.8%, and an RMSE of 184 kcal/day. The Henry equation based on weight for 18-30 years provided 73% accurate predictions (15% underpredictions and 12% overpredictions), a bias of -3.9%, and an RMSE of 200 kcal/day. The Schofield weight equation for 10-18 years provided only 50% accurate predictions, with 2% underpredictions and 48% overpredictions, a bias of 10.7% and an RMSE of 276 kcal/day.
When split by sex and ethnicity, the sex-specific Molnar equation had the narrowest range of accurate predictions and RSME for the four sex and ethnic groups. For western girls and western boys, the Schofield weight and height equation for age 18-30 y had the highest percentage accurate predictions (89% and 79%, respectively), a bias of -0.1% for western girls and of +3.9% for Western boys, and an RMSE of 147 kcal/day for western girls and of 188 kcal/day for western boys. For the non-western group the highest percentage of accurate predictions was found for the Muller equation, based on adults with a BMI>30 (65% and 87%), biases of 0.24% and 0.33%, and RMSEs of 208 and 131 kcal/day for girls and boys respectively. The inclusion of FFM into the REE prediction equation provided no benefit over inclusion of body weight (Figure 2).
-2.3 -2.7 -3.8 -5.2 -2.6 -6.6 -7.4
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