Table V.
Multiple Regression Analyses Examining the Association of Catastrophizing After Adjusting for Sex, Disability Type, and Pain Intensity
| Step and variables | R2 | ΔR2 | ΔF | Final Standardized β | p Valuea |
|---|---|---|---|---|---|
| Pain intensity (NRS) | |||||
| Sex (Ref: Female) | .03 | .03 | 2.65 | −.16 | .16 |
| Disability type (Ref: SB) | .05 | .02 | .87 | ||
| CP | −.01 | .97 | |||
| NMD | −.13 | .31 | |||
| Catastrophizing (PCS-C) | .10 | .05 | 4.03* | .23 | .05 |
| Psychological adjustment (CHQ-CF87 MH) | |||||
| Sex (Ref: Female) | .07 | .07 | 5.53* | .15 | .13 |
| Disability type (Ref: SB) | .09 | .03 | 1.13 | ||
| CP | .10 | .37 | |||
| NMD | −.03 | .61 | |||
| Pain Intensity | .29 | .19 | 2.24** | −.39 | <.001 |
| Catastrophizing (PCS-C) | .35 | .06 | 7.03** | −.26 | .01 |
| Functional ability (FDI) | |||||
| Sex (Ref: Female) | .00 | .00 | .01 | .10 | .36 |
| Disability type (Ref: SB) | .00 | .00 | .11 | ||
| CP | .04 | .77 | |||
| NMD | .13 | .32 | |||
| Pain intensity | .16 | .15 | 13.58** | .38 | .001 |
| Catastrophizing (PCS-C) | .17 | .01 | 1.16 | .12 | .28 |
| Community participation (PCPQ) | |||||
| Sex (Ref: Female) | .00 | .00 | .04 | .04 | .71 |
| Disability type (Ref: SB) | .08 | .08 | 3.33* | ||
| CP | .21 | .10 | |||
| NMD | .39 | .003 | |||
| Pain intensity | .11 | .03 | 2.72 | .13 | .23 |
| Catastrophizing (PCS-C) | .16 | .04 | 3.76*** | .22 | .06 |
Note. NRS = numeric rating scale, average pain intensity for the past week; PCS-C = Pain Catastrophizing Scale, child version; CHQ-CF87 MH = Mental Health scale of the Child Health Questionnaire, child version; FDI = Functional Disability Inventory; PCPQ = Pediatric Community Participation Questionnaire; CP = cerebral palsy; NMD = neuromuscular disease; SB = spina bifida.
aThe p value for unstandardized β coefficients on the final model.
***p < .10, *p < .05, **p < .01.