Table 3.
Predictors for duration of sick leave (multivariate analysis)
| Predictor | B | SE | Wald | Degree of freedom | p | Exp (B) | Hazard ratio | |
|---|---|---|---|---|---|---|---|---|
| Lower | Upper | |||||||
| Socio-demographic | ||||||||
| Age at start of sick leavea | 15.66 | 3 | 0.001 | |||||
| 20–29 | 1.00 | Reference | ||||||
| 30–39 | − 1.05 | 0.31 | 11.44 | 1 | 0.001 | 0.35 | 0.19 | 0.64 |
| 40–49 | − 1.19 | 0.37 | 10.61 | 1 | 0.001 | 0.30 | 0.15 | 0.62 |
| ≧ 50 | − 0.28 | 0.50 | 0.32 | 1 | 0.57 | 0.75 | 0.28 | 2.00 |
| Sexa | ||||||||
| Male | 1.00 | Reference | ||||||
| Female | − 0.05 | 0.24 | 0.05 | 1 | 0.83 | 0.95 | 0.60 | 1.51 |
| Clinical | ||||||||
| Number of previous sick leaveb | 6.39 | 2 | 0.04 | |||||
| 0 | 1.00 | Reference | ||||||
| 1 | − 0.24 | 0.25 | 0.91 | 1 | 0.34 | 0.79 | 0.48 | 1.29 |
| 2≦ | − 0.71 | 0.29 | 6.16 | 1 | 0.01 | 0.49 | 0.28 | 0.86 |
| Work related | ||||||||
| Employee rankb | 20.12 | 3 | < 0.001 | |||||
| Manager | 1.00 | Reference | ||||||
| Senior staff | 0.44 | 0.28 | 2.49 | 1 | 0.12 | 1.55 | 0.90 | 2.66 |
| Normal staff | − 0.44 | 0.35 | 1.53 | 1 | 0.22 | 0.65 | 0.32 | 1.29 |
| Assistant staff | − 2.12 | 0.79 | 7.23 | 1 | 0.01 | 0.12 | 0.03 | 0.56 |
aAnalysed using the forced entry method
bAnalysed using the forward selection method (likelihood ratio)