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. 2023 Jan 25;31(2):316–328. doi: 10.1002/oby.23639

TABLE 1.

Definitions of obesity for the overall population and Asian individuals

Classification BMI (kg/m2)
International classification (WHO) [2] Asian population (WHO) [2] Asian Indian population (Consensus Statement for Asian Indians of the Metabolic and Obesity Summit) [3] Japanese population (JASSO) [4] Korean population (KSSO) [5]
Underweight <18.5 <18.5 <18.5 <18.5
Normal range ≥18.5 and <25.0 ≥18.5 and <23.0 ≥18.0 and <23.0 ≥18.5 and <25.0 18.5‐22.9
Overweight ≥25.0 and <30.0 ≥23.0 and <27.5 ≥23.0 and <25.0 23.0‐24.9
Obesity ≥30.0 ≥27.5 ≥25.0
Obesity class I ≥30.0 and <35.0 ≥25.0 and <30.0 25.0‐29.9
Obesity class II ≥35.0 and <40.0 ≥30.0 and <35.0 30.0‐34.9
Obesity class III ≥40.0 ≥35.0 and <40.0 ≥35.0
Obesity class IV ≥40.0
Classification Waist circumference (cm)

International Diabetes Federation [ 6 ]

Central obesity defined as BMI > 30.0; if BMI ≤30.0, then waist circumference should be assessed

KSSO [ 5 ]

Increased risk of comorbidity (T2D, hypertension, and dyslipidemia) according to abdominal obesity

Central obesity
  • White, men: ≥94; women: ≥80 a

  • South Asian/Chinese/Japanese, men: ≥90; women: ≥80

  • Men: ≥90; women: ≥85

Abbreviations: JASSO, Japan Society for the Study of Obesity; KSSO, Korean Society for the Study of Obesity; T2D, type 2 diabetes; WHO, World Health Organization.

a

In the US, the Adult Treatment Panel III values (102 cm for men; 88 cm for women) are likely to continue to be used for clinical purposes.