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) | 1.829 (0.85 to 2.81) | 0.495 | 0.248 (<0.0001) | 1.358 (0.58 to 2.14) | 0.395 | 0.184 (0.001) |
Age | 0.076 (0.03 to 0.12) | 0.024 | 0.250 (0.001) | 0.033 (−0.004 to 0.07) | 0.019 | 0.108 (0.082) |
Education | −0.033 (−0.12 to 0.06) | 0.045 | −0.058 (0.464) | −0.018 (−0.09 to 0.06) | 0.037 | −0.031 (0.628) |
Pain (BS-11) | 0.155 (−0.07 to 0.38) | 0.115 | 0.088 (0.182) | |||
Anxiety (HADS) | 0.051 (−0.08 to 0.18) | 0.064 | 0.062 (0.424) | |||
Depression (HADS) | 0.091 (−0.04 to 0.22) | 0.064 | 0.086 (0.160) | |||
Catastrophising (CSQ) | −0.018 (−0.08 to 0.05) | 0.032 | −0.040 (0.580) | |||
Social support (MSPSS) | 0.08 (0.05 to 0.11) | 0.014 | 0.290 (<0.0001) | |||
Illness perceptions (BIPQ) | 0.154 (0.11 to 0.20) | 0.024 | 0.366 (<0.0001) | |||
Fear avoidance beliefs (FABQ) | 0.044 (0.01 to 0.07) | 0.016 | 0.189 (0.005) | |||
R2 | 0.149 | 0.516 | ||||
R2 change | 0.149 | 0.367 | ||||
F for change in R2 | F (3, 196)=11.418 (<0.0001) | F (7, 189)=20.507 (<0.0001) | ||||
Adjusted R2 | 0.136 | 0.491 |
B, unstandardised beta; β, standardised beta; BIPQ, Brief Illness Perception Questionnaire; BPS, Back Performance Scale; BS-11,11-point box scale; CSQ, Coping Strategies Questionnaire; FABQ, Fear Avoidance Beliefs Questionnaire; HADS, Hospital Anxiety and Depression Scale; MSPSS, Multidimensional Scale of Perceived Social Support; SEB, SE of beta.