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| Disease riska relative to normal weight and waist circumference | ||||
|---|---|---|---|---|
| BMI (kg/m2) | Obesity class | Men 102 cm or less Women 88 cm or less | Men >102 cm Women >88 cm | |
| Underweight | <18.5 | – | – | |
| Normal | 18.5–24.9 | – | – | |
| Overweight | 25.0–29.9 | Increased | High | |
| Obesity | 30.0–34.9 | I | High | Very high |
| 35.0–39.9 | II | Very high | Very high | |
| Extreme obesity | 40.0+ | III | Extremely high | Extremely high |
aDisease risk for type 2 diabetes, hypertension, and CVD (http://www.nhlbi.nih.gov/health/public/heart/obesity/lose_wt/bmi_dis.htm).
