| No surgery, injection or physical therapy | Surgery | Injection or physical therapy but not surgery | ||||
---|---|---|---|---|---|---|---|
 | n | n | PRa | (95% CI) | n | PRa | (95% CI) |
Number of MRI abnormalities | Â | Â | Â | Â | Â | Â | Â |
   0 | 20 | 2 | 1 | - | 9 | 1 | - |
   1 | 16 | 2 | 1.2 | (0.2-7.8) | 9 | 1.3 | (0.6-2.9) |
   2 | 21 | 11 | 3.4 | (0.8-14.3) | 19 | 1.9 | (1.0-3.6) |
   3 | 20 | 7 | 3.2 | (0.7-14.3) | 23 | 1.8 | (1.0-3.3) |
   4 | 14 | 7 | 3.0 | (0.7-13.0) | 11 | 1.6 | (0.8-3.2) |
Mental Health | Â | Â | Â | Â | Â | Â | Â |
   Good | 26 | 3 | 1 | - | 25 | 1 | - |
   Intermediate | 29 | 12 | 2.2 | (0.7-7.3) | 15 | 0.6 | (0.4-1.1) |
   Poor | 36 | 14 | 2.7 | (0.8-8.9) | 31 | 0.8 | (0.5-1.3) |
Number of distressing somatic symptoms | Â | Â | Â | Â | Â | Â | Â |
   0 | 48 | 17 | 1 | - | 34 | 1 | - |
   1 | 20 | 6 | 0.8 | (0.3-1.9) | 17 | 1.1 | (0.7-1.8) |
   ≥ 2 | 23 | 6 | 0.8 | (0.3-1.8) | 20 | 1.2 | (0.8-2.0) |