Table 3.
Multivariable analysis of preinjury and injury-related characteristics associated with work absence modelled for 12 months and 24 months postinjury
| Dimension: variable | 12 months (n=1583) | 24 months (n=1421) | ||
| aRR* | 95% CI | aRR* | 95% CI | |
| Sociodemographic: age | ||||
| 18–29 | Ref | Ref | ||
| 30–49 | 0.90 | 0.65 to 1.23 | 0.68 | 0.50 to 0.92 |
| 50–64 | 0.80 | 0.55 to 1.16 | 0.75 | 0.53 to 1.06 |
| Sociodemographic: gender | ||||
| Female | Ref | Ref | ||
| Male | 1.40 | 1.03 to 1.90 | 1.91 | 1.42 to 2.57 |
| Sociodemographic: income | ||||
| ≥$50 001 | Ref | Ref | ||
| $30 000–$50 000 | 1.50 | 1.05 to 2.15 | 1.74 | 1.19 to 2.53 |
| ≤$30 000 | 1.80 | 1.20 to 2.69 | 1.80 | 1.18 to 2.74 |
| No income given | 2.07 | 1.36 to 3.15 | 2.45 | 1.65 to 3.66 |
| Sociodemographic: occupation | ||||
| Professional | Ref | Ref | ||
| Technical | 1.07 | 0.77 to 1.50 | 1.34 | 0.94 to 1.88 |
| Trade/manual | 1.55 | 1.11 to 2.15 | 1.73 | 1.23 to 2.45 |
| Unclassified | 1.09 | 0.44 to 2.71 | 1.54 | 0.75 to 3.19 |
| Sociodemographic: income adequacy | ||||
| Adequate | – | – | Ref | |
| Inadequate | – | – | 0.80 | 0.62 to 1.01 |
| Sociodemographic: financial security | ||||
| Secure/fairly secure | Ref | – | – | |
| Fairly insecure/insecure | 1.51 | 1.17 to 1.95 | – | – |
| Psychosocial: job satisfaction | ||||
| Completely/mostly satisfied | Ref | Ref | ||
| Neither satisfied nor dissatisfied | 1.45 | 1.00 to 2.09 | 1.59 | 1.13 to 2.22 |
| Mostly/completely dissatisfied | 1.37 | 0.88 to 2.12 | 1.85 | 1.27 to 2.70 |
| Physical: exertion | ||||
| Never | – | – | Ref | |
| Occasionally half the time | – | – | 1.16 | 0.86 to 4.56 |
| Three-quarters of time or greater | – | – | 0.78 | 0.55 to 1.12 |
| Work organisation: hours of work | ||||
| ≤30 hours | 1.65 | 1.16 to 2.33 | ||
| 31–45 hours | Ref | – | – | |
| ≥46 hours | 1.65 | 1.26 to 2.17 | – | – |
| Work organisation: prework days | ||||
| ≤5 days | – | – | Ref | |
| 6–7 days | – | – | 1.35 | 1.03 to 1.78 |
| Work organisation: employment contract | ||||
| Employee—permanent | Ref | Ref | ||
| Employee—temporary/casual | 1.68 | 1.21 to 2.34 | 1.77 | 1.28 to 2.46 |
| Employee—fixed term | 2.15 | 1.34 to 3.44 | 1.40 | 0.79 to 2.48 |
| Self-employed | 1.33 | 0.90 to 1.97 | 1.27 | 0.81 to 1.98 |
| Employer | 0.45 | 0.19 to 1.06 | 0.42 | 0.14 to 1.24 |
| Lifestyle: body mass index | ||||
| ≤24 | Ref | Ref | ||
| 25–29 | 1.23 | 0.93 to 1.64 | 0.97 | 0.73 to 1.29 |
| ≥30 | 1.11 | 0.82 to 1.53 | 1.07 | 0.79 to 1.45 |
| Health: comorbidities | ||||
| No comorbidities | Ref | Ref | ||
| One co-morbidity | 1.03 | 0.76 to 1.40 | 0.74 | 0.53 to 1.04 |
| Two or more comorbidities | 1.65 | 1.24 to 2.21 | 1.79 | 1.36 to 2.35 |
| Injury: work-related injury | ||||
| No | Ref | Ref | ||
| Yes | 1.52 | 1.19 to 2.92 | 1.53 | 1.20 to 1.97 |
| Injury: prior injury | ||||
| No | – | – | Ref | |
| Yes | – | – | 1.40 | 1.08 to 1.80 |
| Injury: threat to life | ||||
| No | – | – | Ref | |
| Yes/maybe | – | – | 1.48 | 1.07 to 2.04 |
*Additionally adjusted for time since injury, injury type and region, interview region and anatomical injury severity—NISS.
aRR, adjusted relative risk; NISS, New Injury Severity Score.