For males

Target metabolic needs (kcals/day) = [66.5 + (13.75 × Wt) + (5.003 × Ht) − (6.775 × Age)] × adjustment factor

For females

Target metabolic needs (kcals/day) = [655.1 + (9.563 × Wt) + (1.85 × Ht) − (4.676 × Age)] × adjustment factor

Wt = weight in kg

Ht = height in cm

Age = Age in years

Adjustment factors (most severe was selected)

Other, not listed below <value=“1.2”>

• Any other problem, not listed below.

Infection, mild <value=“1.3”>

• Ex mild skin, line or surgical wound infection. Local redness, heat and swelling but no systemic signs.

Operation, minor <value=“1.3”>

• Any surgical procedure that does not require general anesthesia or respiratory support.

Operation, major <value=“1.35”>

• Any surgical procedure that does require general anesthesia or respiratory support.

Infection, peritonitis (non-septic) <value=“1.35”>

• Peritonitis based on visual inspection or culture. Patient does not have systemic signs of sepsis.

Cancer <value=“1.35”>

• Patient is known to have an active tumor. May or may not be undergoing active or palliative treatment. Trauma, single fracture (skeletal) <value=“1.4”>

• Patient has trauma resulting in a single skeletal fracture of any bone except long bones. Infection, moderate <value=“1.45”>

• Infections that would normally require ICU admission for treatment. Ex Community acquired pneumonia, Ventilator Associated Pneumonia. Trauma, single long-bone fracture <value=“1.45”>

• Trauma with a fracture to a long bone (femur, humerus, tibia, fibula, radius and ulna).

Trauma, multiple fractures <value=“1.5”>

• Trauma with multiple fractures to any bones, including at least one long bone.

Trauma, blunt with or without fractures <value=“1.6”>

• Blunt trauma, such as a motor vehicle crash and fall from height. Includes Penetrating trauma. Infection, severe <value=“1.65”>

• Any infection, or suspected infection, that expresses itself systemically as sepsis.

Burns, less than or equal to 20% TBSA <value=“1.7”>

• Chemical or thermal burns to less than 20% of total body surface area.

Malnourished (high risk of refeeding syndrome) <value=“0.85”>

• Body mass index of less than 17 or history and physical exam consistent with malnourishment or high risk of malnourishment. Based on clinical grounds decided by attending clinician.

Notes: Harris–Benedict calculated targets were capped at 35 kcal/kg/day and obese patients (BMI ≥ 30 kg/m²) used ideal body weight (BMI = 21 kg/m²) in all Harris–Benedict calculations.

Abbreviations: kcals, kilocalories; Wt, weight in kilograms; Ht, height in centimeters; kg, kilograms; cm, centimeters; Ex, example; ICU, intensive care unit; TBSA, total burn surface area.