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International classification of BMI, WHO [7].
| Category | BMI range (kg/m2) |
|---|---|
| Underweight | ≤18.50 |
| Severe underweight | <16.00 |
| Moderate underweight | 16.00-16.90 |
| Mild underweight | 17.0-18.49 |
| Normal range | 18.5-24.9 |
| Overweight | ≥25.00 |
| Pre-obese | 25.00-29.90 |
| Obesity | ≥30.00 |
| Obese class I | 30.00-34.90 |
| Obese class II | 35.00-39.90 |
| Obese class III | ≥40.00 |
