Children with Special Needs: Growth Chart and Nutrition Calculator

This tool is designed for healthcare professionals to assess the growth of children with specific health conditions (Down Syndrome, Cerebral Palsy) using condition-specific growth charts and to estimate their unique nutritional requirements based on published, evidence-based formulas.

Energy Requirement Formulas (Down Syndrome)

• < 5 years: Peterson Catch-Up Growth using 50th percentile weight from the Down Syndrome chart.
• 5-11 years (Girls [2]): 14.3 kcal/cm × height (cm)
• 5-11 years (Boys [2]): 16.1 kcal/cm × height (cm)
• ≥ 12 years (IOM REE [1]):
  • Healthy Weight Male: 79 - (34.2 × age in years) + (730 × height in m) + (15.3 × weight in kg)
  • Healthy Weight Female: 322 - (26 × age in years) + (504 × height in m) + (11.6 × weight in kg)
  • Overweight/Obese Male: 420 - (33.5 × age in years) + (418.9 × height in m) + (16.7 × weight in kg)
  • Overweight/Obese Female: 516 - (26.8 × age in years) + (347 × height in m) + (12.4 × weight in kg)

Height Estimation Formulas (Cerebral Palsy)

• MS Mokhy, 2021 (Ages 2-18y) [6]:Height (cm) = 32.2 + (3.14 × Tibia Length in cm)
• Stevenson et al., 1995 (Ages <12y) [7]:
  • Height (cm) = 30.8 + (3.26 × Tibia Length in cm)
  • Height (cm) = 2.69 × Knee Height (cm) + 24.2
  • Height (cm) = (4.35 × Upper Arm Length in cm) + 21.8

Energy Requirement Formulas (Cerebral Palsy)

• 5-12 years (Culley & Middleton, 1969 [4]):
  • Without motor dysfunction: 14.7 kcal/cm × height (cm)
  • Ambulatory patients with motor dysfunction: 13.9 kcal/cm × height (cm)
  • Non-ambulatory patients: 11.1 kcal/cm × height (cm)

Protein Requirement Formula

• Calculated using RDA (2004) values for protein (g/kg/day) based on the patient's age. Uses 50th percentile weight for Down Syndrome < 5 years, otherwise uses actual weight.