| Univariate | P value* | Multivariable OR (95% CI) | P value* |
---|---|---|---|---|
Age, years | Â | < 0.001 | Â | < 0.001 |
 20–29 | Ref |  | Ref |  |
 30–44 | 1.82 (1.42–2.33) |  | 1.76 (1.33–2.35) |  |
 45–63 | 2.24 (1.75–2.88) |  | 1.77 (1.32–2.38) |  |
Gender | ||||
 Female | Ref |  | Ref |  |
 Male | 1.19 (0.96–1.48) | 0.109 | 1.08 (0.84–1.39) | 0.564 |
History of comorbidity | ||||
 Psychiatric | 2.21 (1.73–2.82) | < 0.001 | 1.46 (1.05–2.04) | 0.024 |
 Substance abuse | 1.76 (1.38–2.25) | < 0.001 | 0.94 (0.68–1.29) | 0.696 |
 Somatic | 1.46 (1.15–1.85) | 0.002 | 1.05 (0.79–1.39) | 0.753 |
Education | Â | 0.011 | Â | 0.005 |
 High | Ref |  | Ref |  |
 Medium | 1.30 (1.02–1.65) |  | 1.36 (1.03–1.79) |  |
 Low | 1.51 (1.15–1.98) |  | 1.70 (1.24–2.34) |  |
Sick leave month one before trauma, days/month | Â | < 0.001 | Â | < 0.001 |
 None | Ref |  | Ref |  |
 Part | 6.70 (4.88–9.19) |  | 7.72 (5.30–11.23) |  |
 Full | 11.99 (7.59–18.94) |  | 11.98 (7.04–20.39) |  |
ISS | Â | < 0.001 | Â | 0.025 |
 ≤ 15 | Ref |  | Ref |  |
 16–24 | 2.78 (2.15–3.59) |  | 0.99 (0.70–1.40) |  |
 25–40 | 7.45 (5.68–9.76) |  | 1.67 (1.14–2.46) |  |
  > 40 | 12.91 (7.73–21.57) |  | 1.41 (0.73–2.72) |  |
GCS on arrival | Â | < 0.001 | Â | < 0.001 |
 14–15 | Ref |  | Ref |  |
 9–13 | 2.56 (1.88–3.50) |  | 1.46 (1.00–2.13) |  |
 3–8 | 6.71 (5.18–8.70) |  | 2.40 (1.68–3.42) |  |
AISÂ >Â 2 | ||||
 Head | 3.80 (3.08–4.67) | < 0.001 | 1.17 (0.85–1.61) | 0.327 |
 Spine | 4.39 (3.22–5.98) | < 0.001 | 2.36 (1.60–3.48) | < 0.001 |
SAP on arrival, mm Hg | ||||
 ≥ 90 | Ref |  | Ref |  |
  < 90 | 3.32 (1.96–5.62) | < 0.001 | 0.81 (0.42–1.56) | 0.526 |
Length of stay hospital, days | ||||
 0–7 | Ref | < 0.001 | Ref | < 0.001 |
  > 7 | 6.26 (5.15–7.61) |  | 2.68 (1.97–3.63) |  |
Discharge destination | ||||
 Home | Ref |  | Ref |  |
 Other hospital/rehab | 6.29 (5.17–7.65) | < 0.001 | 2.18 (1.64–2.89) | < 0.001 |