BMI percentile for age and sex is used to assess what aspect of pediatric health?

• A. Bone age
• B. Growth velocity
• C. Body composition and adiposity
• D. Circumference measurement only

Answer: (C)

BMI percentile for age and sex is used to gauge a child’s level of body fat relative to peers. It combines weight and height to provide a snapshot of adiposity and overall body composition, helping identify underweight, healthy weight, overweight, or obesity. This focus on adiposity is why it’s the preferred screening measure for fatness in kids.

Bone age reflects skeletal maturity, determined by radiographs, not body fat; BMI percentile doesn’t assess maturation of bones. Growth velocity looks at how quickly height increases over time, which is a separate measure of linear growth you’d track with serial height measurements. Circumference can hint at central fat distribution, but it doesn’t offer the same overall picture of body fat as BMI does.

So, the right concept is that BMI percentile is used to assess body composition and adiposity in pediatric health.