REE Prediction Equations (Pseudo-Code)

Legend:

age = age (years);

wt = body weight (kg);

htm = body height (m);

htcm = body height (cm);

male = male gender (0 = female; 1 = male);

if = if operator;

& = AND logical operator;

n = sample size used for the development of the given equation.

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Harris–Benedict equation (kcal/day) (n = 136 men and 103 women):

66.4730 + 13.7516*wt + 5.0033*htcm − 6.7550*age if male = 1

655.0955 + 9.5634*wt + 1.8496*htcm − 4.6756*age if male = 0

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Henry equation (MJ/day) (n = 1429 males and 1681 females):

0.255*wt − 0.141 if male = 1 & age < 3

0.0937*wt + 2.15 if male = 1 & (age ≥ 3 & age < 10)

0.0769*wt + 2.43 if male = 1 & (age ≥ 10 & age ≤ 18)

0.246*wt − 0.0965 if male = 0 & age < 3

0.0842*wt + 2.12 if male = 0 & (age ≥ 3 & age < 10)

0.0465*wt + 3.18 if male = 0 & (age ≥ 10 & age ≤ 18)

The u.m. is MJ/day. Multiply by 238.85 to obtain kcal/day.

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ION NW equation (kcal/day) (n = 154 males and n = 397 females aged 3 to 18 years, with normal weight):

68 − 43.3*age + 7.12*htcm + 19.2*wt if male = 1

189 − 17.6*age + 6.25*htcm + 7.9*wt if male = 0

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IOM OW and OB equation (kcal/day) (n = 157 males and n = 249 females aged 3 to 18 years, with overweight or obesity):

419.9 − 35.5*age + 4.189*htcm + 16.7*wt if male = 1

515.8 − 26.8*age + 3.47*htcm + 12.4*wt if male = 0

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Mifflin equation (kcal/day) (n = 251 men and n = 247 women aged 19 to 78 years, with normal weight or obesity):

10*wt + 6.25*htcm − 5.0*age – 161*male.

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Molnár equation (KJ/day) (n = 193 boys and n = 178 girls aged 10 to 16 years, with normal weight or obesity):

50.9*wt + 25.3*htcm − 50.3*age + 26.9 if male = 1

51.2*wt + 24.5*htcm − 207.5*age + 1629.8 if male = 0

The u.m. is KJ/day. Divide by 4.184 to obtain kcal/d.

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Müller equation (n = 243 boys and girls aged 5 to 17 years, with normal weight or obesity):

0.02606*wt + 0.04129*htcm + 0.311*male − 0.08369*age − 0.808

The u.m. is MJ/day. Multiply by 238.85 to obtain kcal/day.

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Schofield weight equation (kcal/day) (n = 1072 males and n = 988 females):

59.512*wt − 30.4 if male = 1 & age < 3

22.706*wt + 504.3 if male = 1 & (age ≥3 & age ≤10)

17.686*wt + 658.2 if male = 1 & (age >10 & age ≤18)

58.317*wt − 31.1 if male = 0 & age < 3

20.315*wt + 485.9 if male = 0 & (age ≥3 & age ≤10)

13.384*wt + 692.6 if male = 0 & (age >10 & age ≤18)

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Schofield weight and height equation (kcal/day) (n = 1072 males and n = 988 females):

0.167*wt + 1517.4*htm − 617.6 if male = 1 & age < 3

19.60*wt + 130.3*htm + 414.9 if male = 1 & (age ≥3 & age ≤10)

16.25*wt + 137.2*htm + 515.5 if male = 1 & (age >10 & age ≤18)

16.25*wt + 1023.2*htm − 413.5 if male = 0 & age < 3

16.97*wt + 161.8*htm + 371.2 if male = 0 & (age ≥3 & age ≤10)

8.365*wt + 465*htm + 200 if male = 0 & (age >10 & age ≤18)

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WHO weight equation (kcal/day):

60.9*wt – 54 if male = 1 & age < 3

22.7*wt + 495 if male = 1 & (age ≥3 & age ≤10)

12.2*wt + 746 if male = 1 & (age >10 & age ≤18)

61.0*wt – 51 if male = 0 & age < 3

22.4*wt + 499 if male = 0 & (age ≥3 & age ≤10)

17.7*wt + 659 if male = 0 & (age >10 & age ≤18)