| Total LBP days | p-value |
---|---|---|
 | (median [IQR]) |  |
Male | 17 [8-31] | < 0.01 |
Females | 29 [21-48] | Â |
Duration | Â | 0.4 |
1 - 7 days | 23 [10-41] | Â |
- 3 months | 22 [12-39] | Â |
> 3 months | 28 [15-49] | Â |
Leg pain | Â | 0.6 |
yes | 31 [14-46] | Â |
no | 21 [12-30] | Â |
Diagnostic class | Â | 0.01 |
   Disc | 35 [23-54] |  |
   SI-joint | 22 [12-30] |  |
   Dysfunction | 19 [8-41] |  |
   Muscle | 12 [6-36] |  |
   Other* | 15 [7-29] |  |