# Table 1 Predictive equations for estimation of EE

Method

Equation

a

ACCP

The ACCP equation [9, 10, 30] using BM as the only variable

EE(ACCP) = 25 kcal/kg/day · BM

b

Harris–Benedict

The Harris–Benedict equation from 1919  multiplied by a SF

Men: EE(HB) = (66.5 + 13.75 kg−1 · BM + 5.003 cm−1 · height − 6.775 year−1 · age) kcal/day · SF

Women: EE(HB) = (655.1 + 9.563 kg−1 · BM + 1.85 cm−1 · height − 4.676 year−1 · age) kcal/day · SF

c

Harris–Benedict IBM

The Harris–Benedict equation with ideal body mass (IBM) multiplied by a SF

Men: EE(HBI) = (66.5 + 13.75 kg−1 · IBM + 5.003 cm−1 · height − 6.775 year−1 · age) kcal/day · SF

Women: EE(HBI) = (655.1 + 9.563 kg−1 · IBM + 1.85 cm−1 · height − 4.676 year−1 · age) kcal/day · SF

d

Mifflin St Jeor

The Mifflin St Jeor equation  multiplied by a SF

Men: EE(MSJ) = (9.99 kg−1 · BM + 6.25 cm−1 · height − 4.92 year−1 · age + 166) kcal/day · SF

Women: EE(MSJ) = (9.99 kg−1 · BM + 6.25 cm−1 · height − 4.92 year−1 · age − 161) kcal/day · SF

e

Penn State 1

The original Penn State equation from 1998 

EE(PS1) = 1.1 · HB + (32 min l−1 · MV + 140 °C−1 · T Max − 5340) kcal/day

f

Penn State 2

Version 2 of the Penn State equation from 2003 

EE(PS2) = 0.85 · HB + (33 min l−1 · MV + 175 °C−1 · T Max − 6433) kcal/day

g

Penn State 3

Version 3 of the Penn State equation from 2003 

EE(PS3) = 0.96 · MSJ + (31 min l−1 · MV + 167 °C−1 · T Max − 6212) kcal/day

1. ACCP American College of Chest Physicians, T Max maximum body temperature in 24 h (°C) 