Table 2. Tests of differences between groups SMT and MDT (Mann–Whitney U).
Outcome variable | Spinal manipulative therapy (mean rank) | Mechanical diagnosis and therapy (mean rank) | P value |
Between groups changes | |||
Oswestry Disability Index | 11·13 | 14·56 | 0·31 |
Numeric Pain Rating Scale | 9·56 | 15·25 | 0·08 |
50% reduction in the Oswestry Disability Index | 2 = yes | 10 = yes | 0·155 |
6 = no | 8 = no |