Accuracy of body mass index in categorizing weight status in children with intellectual and developmental disabilities. J Pediatr Rehabil Med 2021;14(4):621-629
Date
09/21/2021Pubmed ID
34542044Pubmed Central ID
PMC9105647DOI
10.3233/PRM-200727Scopus ID
2-s2.0-85122393343 (requires institutional sign-in at Scopus site) 1 CitationAbstract
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.
Author List
Polfuss M, Forseth B, Schoeller DA, Huang CC, Moosreiner A, Papanek PE, Sawin KJ, Zvara K, Bandini LAuthor
Paula Papanek PhD, MPT, LAT, FACSM Associate Professor & Director of Exercise Science in the Exercise Science & Physical Therapy department at Marquette UniversityMESH terms used to index this publication - Major topics in bold
Adipose TissueBody Mass Index
Body Weight
Child
Developmental Disabilities
Down Syndrome
Female
Humans
Male
Obesity
