Sequential multiple regression analysis predicting self-reported disability (RMDQ)
| Variable, n=200 | Model 1 | Model 2 | ||||
| B (95% CI) | SEB | β (p value) | B (95% CI) | SEB | β (p value) | |
| Gender (female) (male=reference) | 1.732 (−0.6 to 3.5) | 0.907 | 0.133 (0.058) | 1.343 (0.04 to 2.6) | 0.662 | 0.103 (0.044) |
| Age | 0.050 (−0.33 to 0.13) | 0.042 | 0.093 (0.235) | 0.015 (−0.04 to 0.07) | 0.029 | 0.028 (0.610) |
| Education | −0.244 (−0.4 to 0.09) | 0.079 | −0.241 (0.002) | −0.039 (−0.15 to 0.07) | 0.057 | −0.039 (0.488) |
| Marital status (widowed) (Other marital status=reference) | 2.016 (−0.55 to 4.58) | 1.302 | 0.113 (0.123) | 0.024 (−1.76 to 1.81) | 0.903 | 0.001 (0.979) |
| Work status (unemployed-health reasons) (other work status=reference) | 10.448 (4.48 to 16.42) | 3.029 | 0.226 (0.001) | 3.717 (−0.53 to 7.97) | 2.154 | 0.080 (0.086) |
| Pain (BS-11) | 0.718 (0.37 to 1.07) | 0.177 | 0.230 (<0.0001) | |||
| Anxiety (HADS-A) | 0.224 (0.03 to 0.42) | 0.098 | 0.154 (0.023) | |||
| Depression (HADS-D) | −0.200 (−0.40 to 0.01) | 0.099 | −0.107 (0.044) | |||
| Catastrophising (CSQ) | 0.167 (0.07 to 0.26) | 0.049 | 0.210 (0.001) | |||
| Illness perceptions (BIPQ) | 0.215 (0.14 to 0.29) | 0.038 | 0.289 (<0.0001) | |||
| Fear avoidance beliefs (FABQ) | 0.081 (0.03 to 0.13) | 0.024 | 0.198 (0.001) | |||
| Occupational biomechanical factors (ORFQ) | 0.017 (−0.12 to 0.15) | 0.068 | 0.013 (0.796) | |||
| R2 | 0.202 | 0.647 | ||||
| R2 change | 0.202 | 0.445 | ||||
| F for change in R2 | F (5, 194)=9.824 (<0.0001) | F (7, 187)=33.745 (<0.0001) | ||||
| Adjusted R2 | 0.181 | 0.625 | ||||
B, unstandardised beta; β, standardised beta; BIPQ, Brief Illness Perception Questionnaire; BS-11,11-point box scale; CSQ, Coping Strategies Questionnaire; FABQ, Fear Avoidance Beliefs Questionnaire; HADS, Hospital Anxiety and Depression Scale; HADS-A, Anxiety; HADS-D, Depression; ORFQ, Occupational Risk Factor Questionnaire; RMDQ, Roland Morris Disability Questionnaire; SEB, SE of beta.