Predicts the risk of death from COPD.
It includes four components:
1. Body mass index (BMI)
2. Obstruction of airflow - FEV1 (% of predicted)
3. Dyspnea - mMRC scale
4. Exercise capacity - 6 minute walk distance (meter)
Component | 0 Points | 1 Point | 2 Points | 3 Points |
BMI (kg/m²) | > 21 | ≤ 21 | X | X |
FEV1 (% predicted) | ≥ 65 | 50 - 64 | 36 - 49 | ≤ 35 |
Dyspnea (mMRC scale) | 0 - 1 | 2 | 3 | 4 |
6-Minute walk distance (meters) | ≥ 350 | 250 - 349 | 150 - 249 | < 149 |