Table 1.

Estimated energy needs: predictive equations.

Equations	Estimated Resting Energy Expenditure
Harris–Benedict (HB), kcal/day	Men: (13.75 × W) + (5 × H) − (6.8 × age) + 66 Women: (9.6 × W) + (1.8 × H) − (4.7 × age) + 655
Penn–State (PS), kcal/day	Mifflin: Men: (10 × W) + (6.25 × H) − (5 × age) + 5 Women: (10 × W) + (6.25 × H) − (5 × age) − 161 Penn-State: PS = (Mifflin × 0.94) + (36.6 × 186) − 6597
Post-ICU, kcal/kg/day	30

H: height (cm); ICU: intensive care unit; W: weight (kg).