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Table 4 Statistical analysis for prediction equations that are not in agreement with direct 24-hour metabolic measurements

From: Twenty-four hour metabolic rate measurements utilized as a reference to evaluate several prediction equations for calculating energy requirements in healthy infants

Prediction Value Difference1 P Agreement2
Equation (Mean ± SD) (%) (Paired T-test) (Bland & Altman ± 2SD)
EMTACEE-LWT 86.6 ± 3.3 11.2 ± 12.7 <0.01 7.9 ± 19.2
EMTACRMR-LWT 73.3 ± 3.2 11.4 ± 9.3 <0.01 7.3 ± 11.2
WHO 53.6 ± 0.8 -18.6 ± 5.5 <0.01 -12.4 ± 8.2
SCH-WT 54.9 ± 0.8 -16.6 ± 5.1 <0.01 -11.1 ± 7.6
SCH-LWT 57.9 ± 5.6 -12.2 ± 9.0 <0.01 -8.1 ± 11.8
OXFORD-WT 56.2 ± 0.6 -14.7 ± 5.2 <0.01 -9.9 ± 7.6
OXFORD-LWT 58.1 ± 3.1 -11.9 ± 6.2 <0.01 -8.0 ± 8.6
  1. 1 = ((calculated value from the corresponding prediction equation-reference metabolic parameter/reference metabolic parameter)*100)
  2. 2 = Proximity to zero calculated as the difference between the reference metabolic parameter and the calculated value from the corresponding prediction equation (± 2 standard deviations) [13]