| 100%: | Normal, no complaints or evidence of disease |
| 90%: | Able to perform normal activity; minor signs and symptoms of disease |
| 80%: | Able to perform normal activity with effort; some signs and symptoms of disease |
| 70%: | Cares for self, unable to perform normal activity or to do active work |
| 60%: | Requires occasional assistance but is able to care for most of own needs |
| 50%: | Requires considerable assistance and frequent medical care |
| 40%: | Requires special care and assistance; disabled |
| 30%: | Hospitalization indicated, although death not imminent; severely disabled |
| 20%: | Hospitalization necessary; active supportive treatment required, very sick |
| 10%: | Fatal processes progressing rapidly; moribund |
| 0%: | Dead |