| 0 |
no symptoms |
| 1 |
no significant disability despite symptoms – able to carry out all usual activities |
| 2 |
slight disability – unable to carry out all previous activities but able to carry out ADLs without assistance |
| 3 |
moderate disability – requiring some help but able to walk without assistance |
| 4 |
moderately severe disability – unable to walk without assistance and unable to carry out ADLs without assistance |
| 5 |
severe disability – bedridden, incontinent, requiring constant nursing care and attention |
| 6 |
dead |
