Multivariate Cox PH regression analyses with total days on benefit during 12 months follow-up being the outcome variable, and work related and non-work related factors as independent variables; basic model adjusted for age, gender and the variables that showed confounding effects on the basic variables depressive symptoms, fear-avoidance and/or self efficacy (n = 160)
| Variables* | Multivariate analysis with non-work related factors | Multivariate analysis with all factors | ||
|---|---|---|---|---|
| HR (95% CI) | p value | HR (95% CI) | p value | |
| *Variables units used in the analysis are described in table 2. | ||||
| Dummy variables: †<$60′000; ‡often. | ||||
| Age (years) | 0.99 (0.97–1.01) | 0.32 | 0.99 (0.98–1.01) | 0.55 |
| Gender (F v M) | 1.05 (0.70–1.56) | 0.83 | 1.11 (0.74–1.67) | 0.62 |
| Depressive symptoms | 0.98 (0.97–1.01) | 0.05 | 0.98 (0.95–1.01) | 0.04 |
| Fear-avoidance | 0.99 (0.94–1.04) | 0.57 | 0.98 (0.92–1.04) | 0.50 |
| Self-efficacy | 0.96 (0.90–1.01) | 0.12 | 0.96 (0.91–1.02) | 0.23 |
| Physical health | 1.03 (1.01–1.05) | 0.02 | 1.03 (1.01–1.05) | 0.02 |
| Pain | 0.97 (0.89–1.07) | 0.57 | 0.98 (0.89–1.07) | 0.62 |
| Family income† | 1.26 (0.87–1.83) | 0.22 | 1.23 (0.85–1.79) | 0.28 |
| Fear of income loss‡ | 0.74 (0.47–1.16) | 0.18 | 0.70 (0.44–1.11) | 0.13 |
| Heavy loading | – | – | 0.99 (0.96–1.03) | 0.75 |
| Decision latitude | – | – | 0.98 (0.95–1.01) | 0.13 |
| Psychosocial demands | – | – | 1.00 (0.98–1.03) | 0.91 |