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Related Experiment Video

Updated: Jun 5, 2026

Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging
06:48

Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging

Published on: June 7, 2024

Ethnic-specific BMI and waist circumference thresholds.

Peter T Katzmarzyk1, George A Bray, Frank L Greenway

  • 1Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA. Peter.Katzmarzyk@pbrc.edu

Obesity (Silver Spring, Md.)
|January 8, 2011
PubMed
Summary

New research identifies optimal body mass index (BMI) and waist circumference (WC) thresholds for cardiometabolic risk in white and African-American adults. Findings suggest tailored thresholds may be needed, particularly for African-American women.

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Published on: February 2, 2017

Area of Science:

  • Cardiology
  • Public Health
  • Anthropometry

Background:

  • Current body mass index (BMI) and waist circumference (WC) thresholds for obesity-related health risks are largely based on European populations.
  • Identifying accurate thresholds is crucial for effective public health interventions and clinical risk assessment.

Purpose of the Study:

  • To determine optimal BMI and WC thresholds for identifying cardiometabolic risk in white and African-American (AA) adults.
  • To compare these thresholds between sexes and ethnicities.

Main Methods:

  • Utilized Receiver Operating Characteristic (ROC) curves to identify optimal BMI and WC thresholds.
  • Analyzed data from 2096 white women, 1789 AA women, 1948 white men, and 643 AA men (aged 18-64).
  • Defined elevated cardiometabolic risk as ≥2 factors: high blood pressure, glucose, triglycerides, or low high-density lipoprotein-cholesterol.

Main Results:

  • Optimal BMI thresholds varied: 30 kg/m² (white women), 32.9 kg/m² (AA women), 29.1 kg/m² (white men), 30.4 kg/m² (AA men).
  • Optimal WC thresholds varied: 91.9 cm (white women), 96.8 cm (AA women), 99.4 cm (white men), 99.1 cm (AA men).
  • AA women showed higher optimal BMI (~3 kg/m²) and WC (~5 cm) thresholds compared to white women, with no significant ethnic differences in men.

Conclusions:

  • Optimal BMI and WC thresholds for cardiometabolic risk identification differ by sex and ethnicity.
  • Current thresholds are generally appropriate for men and white women.
  • African-American women may require higher BMI and WC thresholds for accurate cardiometabolic risk assessment.