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Table 2—

Classification of overweight and obesity by BMI, waist circumference, and associated disease risk

BMI (kg/m2)Obesity classDisease risk*
WC: men ≤40 inches; women ≤35 inchesWC: men ≥40 inches; women ≥35 inches
Underweight <18.5    
Normal 18.5–24.9    
Overweight 25.0–29.9  Increased High 
Obesity 30.0–34.9 High Very high 
 35.0–39.9 II Very high Very high 
Extreme obesity ≥40 III Extremely high Extremely high 
BMI (kg/m2)Obesity classDisease risk*
WC: men ≤40 inches; women ≤35 inchesWC: men ≥40 inches; women ≥35 inches
Underweight <18.5    
Normal 18.5–24.9    
Overweight 25.0–29.9  Increased High 
Obesity 30.0–34.9 High Very high 
 35.0–39.9 II Very high Very high 
Extreme obesity ≥40 III Extremely high Extremely high 
*

Disease risk for type 2 diabetes, hypertension, and CVD. Adapted from ref. 9. WC, waist circumference.

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