Document Type

Article

Publication Date

12-2021

Publisher

IOS Press

Source Publication

Journal of Pediatric Rehabilitation Medicine

Source ISSN

1874-5393

Original Item ID

DOI: 10.3233/PRM-200727

Abstract

PURPOSE:

To identify the accuracy of Body Mass Index (BMI) to categorize body weight in a sample of children with spina bifida and Down syndrome as compared to typically developing peers.

METHODS:

A secondary analysis of 32 children with spina bifida, Down syndrome or no chronic illness. A calculated BMI was plotted on the Centers for Disease Control and Prevention age- and sex-specific BMI growth charts to determine each child’s weight status. Percentage of body fat, obtained by labeled water, was plotted on two different body fat percentile reference curves, one derived from a whole body measure (DXA) of body fat and one by skin-fold measure. Differences in weight categories between calculated BMI and body fat percentile curves were reported.

RESULTS:

The calculated BMI for children with a disability had significant misclassifications as a screening tool for body fat when compared to children without a disability. Misclassifications were increased with the body fat percentile reference curve derived from skin-fold measures and for children who primarily used a wheelchair.

CONCLUSION:

The current recommendation to use BMI to categorize weight status is not useful for many children with disabilities. Further research to identify an alternative pragmatic strategy is necessary.

Comments

Accepted version. Journal of Pediatric Rehabilitation Medicine, Vol. 14, No. 4 (December 2021): 621-629. DOI. © 2021 IOS Press. Used with permission.

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