Which statement defines pediatric obesity more precisely?

Which statement defines pediatric obesity more precisely?

• A. BMI greater than the 95th percentile for age and sex.
• B. BMI exactly at the 50th percentile.
• C. Weight above 100 pounds for any age.
• D. Height below the 5th percentile.

Answer: (A)

Pediatric obesity is defined by a child’s body mass index (BMI) relative to age and sex, with a cutoff above the 95th percentile. This percentile-based standard accounts for how children grow and change over time, so BMI is interpreted using growth charts that compare a child to peers of the same age and sex. A BMI above the 95th percentile means the child is heavier than 95% of peers, which is the clinical threshold for obesity. The other options don’t fit because a BMI at the 50th percentile is average weight, not overweight or obese; a fixed weight like 100 pounds doesn’t consider age, height, or developmental stage, so it isn’t a valid universal criterion; and height below the 5th percentile reflects short stature, not excess adiposity.

Pediatric obesity is defined by a child’s body mass index (BMI) relative to age and sex, with a cutoff above the 95th percentile. This percentile-based standard accounts for how children grow and change over time, so BMI is interpreted using growth charts that compare a child to peers of the same age and sex. A BMI above the 95th percentile means the child is heavier than 95% of peers, which is the clinical threshold for obesity.

The other options don’t fit because a BMI at the 50th percentile is average weight, not overweight or obese; a fixed weight like 100 pounds doesn’t consider age, height, or developmental stage, so it isn’t a valid universal criterion; and height below the 5th percentile reflects short stature, not excess adiposity.