Table 5.
Longitudinal Multilevel Models for Pain (McGill PPI)
| Main Effects Model | Interaction Model | |||||
|---|---|---|---|---|---|---|
| Wald χ2(11) = 279.28, p < .001 | Wald χ2(12) = 287.19, p < .001 | |||||
| Fixed Effect | B | p | B | p | Marginal B | p |
| Intervention Arm | ||||||
| Control v SS | .0283 | .641 | .0277 | .648 | - | - |
| Control v Combo | .0271 | .653 | .0276 | .646 | - | - |
| Age | −.0008 | .721 | −.0010 | .669 | - | - |
| ASES | −.0126 | < .001* | −.0097 | < .001* | −.0129 | < .001 |
| CES-D | .0130 | < .001* | .0132 | < .001* | - | - |
| Symptom Duration | .0008 | .684 | .0007 | .717 | - | - |
| Time | −.0406 | .010* | .0929 | .093 | −.0402 | .010 |
| Physical Abuse | .2226 | .006* | .2225 | .005* | - | - |
| Sexual Abuse | .0267 | .733 | .0259 | .739 | - | - |
| Emotional Abuse | −.0282 | .626 | −.0281 | .626 | - | - |
| Fortnightly Exercise | −.0013 | .978 | −.0056 | .902 | - | - |
| Time × ASES | −.0022 | .012* | - | - | ||
Note: PPI = Present Pain Intensity; SS = Social Support Group; Combo = Social Support plus Education Group; ASES = Arthritis Self-Efficacy Scale; CES-D = Center for Epidemiological Study Depression Scale.
*
p ≤ .05