Symptoms | Grade |
No symptoms at all | 0 |
No significant disability despite symptoms; able to carry out all usual duties and activities | 1 |
Slight disability; unable to carry out all previous activities, but able to look after own affairs without assistance | 2 |
Moderate disability; requiring some help, but able to walk without assistance | 3 |
Moderately severe disability; unable to walk without assistance, unable to attend to needs without assistance | 4 |
Severe disability; bedridden, incontinent, and requiring constant nursing care and attention | 5 |
Dead | 6 |