Assessing health risk and intervention
The latest guidance from the National Institute for Health and Care Excellence on the assessment of the health risk arising from obesity and associated interventions.
| BMI classification | Waist circumference |
| Low | High | Very high |
| Overweight | No increased risk | Increased risk | High risk |
| Obesity I | Increased risk | High risk | Very high risk |
- For men, waist circumference of less than 94 cm is low, 94–102 cm is high and more than 102 cm is very high.
- For women, waist circumference of less than 80 cm is low, 80–88 cm is high and more than 88 cm is very high.
| BMI classification | Waist circumference | Comorbidities present |
| Low | High | Very high |
| Overweight | 1 | 2 | 2 | 3 |
| Obesity I | 2 | 2 | 2 | 3 |
| Obesity II | 3 | 3 | 3 | 4 |
| Obesity III | 4 | 4 | 4 | 4 |
1 = General advice on healthy weight and lifestyle
2 = Diet and physical activity
3 = Diet and physical activity; consider drugs
4 = Diet and physical activity; consider drugs; consider surgery