| Employment status |
Group I |
Group II |
| Baseline |
12 months |
24 months |
Baseline |
12 months |
24 months |
| Employed part-time |
3 |
2 |
1 |
1 |
1 |
1 |
| Employed full-time |
6 |
10 |
10 |
10 |
16 |
16 |
| Unemployed (due to pain) |
3 |
0 |
1 |
7 |
1 |
1 |
| Eligible for employment at baseline |
12 |
12 |
12 |
18 |
18 |
18 |
| Total Employed |
9 |
12 |
11 |
11 |
17 |
17 |
| Housewife |
2 |
2 |
2 |
10 |
8 |
8 |
| Disabled |
33 |
32 |
32 |
24 |
24 |
24 |
| Retired/Over 65 |
13 |
13 |
13 |
8 |
8 |
8 |
| Total Number of Patients |
60 |
60 |
60 |
60 |
60 |
60 |
Successful subject - At least 3 weeks relief from first 2injections |