Table 2 Mean outcomes in treatment groups and effects of the addition of the McKenzie method to the recommended first-line care.
Outcome | N** | Unadjusted mean outcome (SE) | Adjusted mean outcome (SE) | Treatment effect* (95% CI) | Pvalue | ||
|---|---|---|---|---|---|---|---|
| Â | Â | McKenzie | First-line Care | McKenzie | First-line Care | McKenzie - First-line Care | Â |
Pain †|  |  |  |  |  |  | 0.02 |
   1 week | 70/69 | 3.5 (0.3) | 3.7 (0.3) | 3.6 (0.2) | 4.0 (0.2) | -0.4 (-0.8 to -0.1) |  |
   3 weeks | 70/68 | 2.0 (0.2) | 2.3 (0.3) | 1.8 (0.2) | 2.5 (0.2) | -0.7 (-1.2 to -0.1) |  |
   Mean pain over first 7 days | 70/69 | 4.9 (0.2) | 4.9 (0.2) | 4.7 (0.2) | 5.0 (0.2) | -0.3 (-0.5 to -0.0) |  |
Global perceived effect ‡ |  |  |  |  |  |  |  |
   1 week | 70/68 | 2.6 (0.2) | 2.1 (0.2) | 2.6 (0.2) | 2.1 (0.2) | 0.5 (-0.0 to 1.1) | 0.07 |
   3 weeks | 70/69 | 3.6 (0.1) | 3.3 (0.2) | 3.6 (0.1) | 3.3 (0.2) | 0.3 (-0.3 to 0.8) | 0.33 |
Disability § |  |  |  |  |  |  | 0.74 |
   1 week | 70/68 | 8.4 (0.7) | 9.0 (0.8) | 8.0 (0.5) | 8.2 (0.5) | -0.2 (-1.5 to 1.0) |  |
   3 weeks | 70/69 | 4.6 (0.7) | 4.5 (0.7) | 4.8 (0.7) | 5.1 (0.7) | -0.3 (-2.3 to 1.6) |  |
Function ¶ |  |  |  |  |  |  | 0.90 |
   1 week | 70/68 | 6.2 (0.3) | 5.8 (0.3) | 6.2 (0.2) | 6.2 (0.2) | 0.0 (-0.4 to 0.5) |  |
   3 weeks | 70/69 | 7.9 (0.2) | 7.7 (0.3) | 7.8 (0.2) | 7.7 (0.3) | 0.0 (-0.7 to 0.8) |  |