| Economic status |
|---|
| E1 |
Complete invalid |
| E2 |
No gainful occupation (including ability to do housework or continue retirement activities) |
| E3 |
Able to work but not at previous occupation |
| E4 |
Working at previous occupation with no restrictions of any kind |
| E5 |
Able to work at previous occupation with no restrictions of any kind |
| Functional Status |
|---|
| F1 |
Total incapacity (or worse than before operation) |
| F2 |
Mild to moderate level of pain (or pain same as before operation but able to perform all daily tasks of living) |
| F3 |
Low level of pain and able to perform all activities except sports |
| F4 |
No pain, but patient has had one or more recurrences of neck or radicular pain |
| F5 |
Complete recovery, no recurrent episodes of pain, able to perform all previous activities |
