Table 3.
Linear Regression Analysis of Univariable Associations of Change in Treatment Allocation With Residualized Change in Each Potential Mediator (a Path).
| Outcome (Potential Mediator) | Predictor | Unstandardized B (SE) | 95% CI | Standardized b | r 2 Change |
|---|---|---|---|---|---|
| Change in illness perceptions | Treatment allocation | 0.41 (0.13) | 0.14 to 0.67 | 0.20 | .04 |
| Change in pain catastrophizing | Treatment allocation | 0.33 (0.13) | 0.06 to 0.59 | 0.17 | .03 |
| Change in back pain myths | Treatment allocation | −0.27 (0.14) | −0.54 to −0.01 | −0.14 | .02 |