如何计算B M I Percentile
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BMI percentile for children/adolescents compares individual BMI to age- and sex-specific growth charts. It assesses pediatric weight status.
公式
Calculate BMI = weight (kg) / height (m)²
- BMI
- weight (kg) / height (m)² — weight (kg) / height (m)²
分步指南
- 1Calculate BMI = weight (kg) / height (m)²
- 2Compare to CDC growth chart for age and sex
- 3Results: underweight (<5th), normal (5-85th), overweight (85-95th), obese (≥95th)
例题解析
输入
Child age 10, weight 40 kg, height 140 cm, BMI 20.4
结果
Percentile ≈ 95th (overweight-obese range)
Requires growth chart lookup
常见错误注意事项
- ✕Using adult BMI categories for children
- ✕Not accounting for racial variation in growth patterns
常见问题
Why use percentiles instead of BMI categories for children?
Children's bodies change with age; percentiles account for growth patterns.
Are all high BMI children overweight?
No, athletic children with muscle have high BMI but low body fat. Clinical judgment important.
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