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- Title
Limitations of BMI z scores for assessing weight change: A clinical tool versus individual risk.
- Authors
Adise, Shana; Rhee, Kyung E.; Laurent, Jennifer; Holzhausen, Elizabeth A.; Hayati Rezvan, Panteha; Alderete, Tanya L.; Vidmar, Alaina P.
- Abstract
Although pediatric growth curves provide clinical utility, using these metrics for within‐person change over time can be misleading. As research is focused on understanding cardiometabolic consequences of weight gain, it is important to use precise metrics to analyze these longitudinal research questions. Despite several foundational recommendations to limit the use of reference pediatric growth curves (e.g., BMI z scores) for within‐person longitudinal research, it has evolved into the "gold standard" for using growth curves for pediatric weight gain analyses. Therefore, the objective of this paper is to discuss (A) the methodology used to create reference growth curves; (B) the appropriate use of reference pediatric BMI growth curves within the context of cross‐sectional and longitudinal analyses in research; and (C) how to select metrics based on desired evaluations. Careful consideration using standardized references scores is essential when assessing obesity‐related questions and comorbid risk over time in pediatric populations.
- Subjects
CHILD patients; RESEARCH questions; LONGITUDINAL method; WEIGHT gain; CROSS-sectional method
- Publication
Obesity (19307381), 2024, Vol 32, Issue 3, p445
- ISSN
1930-7381
- Publication type
Article
- DOI
10.1002/oby.23957