BMI-for-age is the method recommended to screen for obesity, overweight, and underweight among children and teens aged 2 to 20 years.
BMI-for-age is a screening tool that may lead to further assessment to diagnose a specific health condition.
For children, BMI is age- and sex-specific, and nutritional status is identified on the basis of percentiles. For adults, BMI is neither age- nor sex-specific, and nutritional status is defined by fixed cut points.
Periodic, accurate measurements and growth records are important elements of growth screening. An accurate interpretation of growth depends on the accuracy of weighing and measuring.
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