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Khamis Roche Method Formula Calculator

Khamis Roche Method Formula:

\[ height = 54.5 + 0.3069 \times age + 1.767 \times mid\_parental + 0.783 \times \frac{weight}{age} \]

years
cm
kg

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1. What is the Khamis Roche Method?

The Khamis Roche Method is a mathematical approach to predict a child's adult height based on current age, weight, and mid-parental height. It's particularly useful for boys and provides a reasonably accurate estimation of final adult height.

2. How Does the Calculator Work?

The calculator uses the Khamis Roche formula:

\[ height = 54.5 + 0.3069 \times age + 1.767 \times mid\_parental + 0.783 \times \frac{weight}{age} \]

Where:

Explanation: The equation combines genetic factors (mid-parental height) with current growth parameters (age and weight) to predict final adult height.

3. Importance of Height Prediction

Details: Height prediction is valuable for assessing growth patterns, identifying potential growth disorders, and providing realistic expectations for final adult height. It's commonly used in pediatric endocrinology.

4. Using the Calculator

Tips: Enter current age in years, mid-parental height in centimeters, and current weight in kilograms. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the Khamis Roche Method?
A: The method is generally accurate within ±2 inches for most children, though individual variations can occur due to various factors.

Q2: At what age is this method most accurate?
A: The method works best for children between 4-17 years old, with increasing accuracy as children approach puberty.

Q3: What is mid-parental height and how is it calculated?
A: Mid-parental height is the average of the biological parents' heights. For boys: (father's height + mother's height + 13 cm) / 2.

Q4: Are there limitations to this method?
A: The method may be less accurate for children with growth disorders, nutritional deficiencies, or those who experience early or late puberty.

Q5: Can this method be used for girls?
A: While sometimes used for girls, the Khamis Roche method was primarily developed and validated for boys. Different coefficients may be needed for more accurate predictions in girls.

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