A method for calculating BMI z-scores and percentiles above the 95^th percentile of the CDC growth charts.

ABSTRACT:

Background

The 2000 CDC growth charts are based on national data collected between 1963 and 1994 and include a set of selected percentiles between the 3^rd and 97^th and LMS parameters that can be used to obtain other percentiles and associated z-scores. Obesity is defined as a sex- and age-specific body mass index (BMI) at or above the 95^th percentile. Extrapolating beyond the 97^th percentile is not recommended and leads to compressed z-score values.

Aim

This study attempts to overcome this limitation by constructing a new method for calculating BMI distributions above the 95^th percentile using an extended reference population.

Subjects and methods

Data from youth at or above the 95^th percentile of BMI-f

SUBMITTER: Wei R 

PROVIDER: S-EPMC11232929 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature