Comparing US paediatric and adult weight classification at the transition from late teenage to young adulthood

Although paediatric growth charts are recommended for weight assessment prior to age 20, many teenagers transition earlier to adult care where absolute body mass index (BMI) is used. This study examines concordance of weight classification in older teenagers using paediatric percentiles and adult thresholds. BMI from 23?640 US teens ages 18-19 years were classified using paediatric BMI percentile criteria for underweight (

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