Outcome (possible change) | Median change | Significance | |
---|---|---|---|
 | Cohort 1 | Cohort 2 | (2-sided p) |
Pain severity (/9) | -4.0 | -4.0 | 0.864 |
Symptom frequency scale (Deyo 1988) | Â | Â | Â |
Back pain bothersomeness | -1.0 | -1.5 | 0.625 |
Interference with work | -2.0 | -1.5 | 0.675 |
Life impact (/4) | -1.0 | -1.0 | 0.364 |
Cut down activity (/28 | -2.0 | -5.0 | 0.252 |
Cut down work (/28) | -1.0 | -1.0 | 0.607 |
SF-12 subscales | Â | Â | Â |
   General health (/4) | 0.0 | 0.0 | 0.180 |
   Interference with normal work (/4) | -1.0 | -1.0 | 0.298 |
   Feeling calm (/4) | 0.0 | 0.0 | 0.891 |
   Having energy (/4) | 0.0 | -1.0 | 0.190 |
   Feeling downhearted (/4) | 0.0 | -1.0 | 0.151 |