Table 2.

Odds ratios for full sick leave month twelve after trauma

	Univariate	P value*	Multivariable OR (95% CI)	P value*
Age, years		< 0.001		< 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		0.011		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		< 0.001		< 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		< 0.001		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		< 0.001		< 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)
AIS > 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

OR Odds Ratio, CI Confidence Interval, ISS Injury Severity Score, GCS Glasgow Coma Scale, AIS Abbreviated Injury Scale, SAP Systolic Arterial Pressure, mm Hg Millimeters of mercury

^*χ²-test