Table 2.

Logistic regression analyses of baseline data in relation to return to work after mild traumatic brain injury.

	Unadjusted models				Fully adjusted model, N = 135			Final model, N = 141
	N	OR	CI (95%)	P value	OR	CI (95%)	P value	OR	CI (95%)	P value
Preinjury factors
Age	151	1.03	(1.0, 1.1)	0.061	0.98	(0.9, 1.0)	0.410
Sex	151	1.39	(0.7, 2.7)	0.347	0.77	(0.2, 2.8)	0.693
Have been sick-listed the last year before injury	151	6.90	(3.2, 14.8)	<0.001	8.48	(2.6, 27.9)	<0.001	7.29	(2.6, 20.3)	<0.001
Injury-related factor
Intracranial injury (CT scan)	151	1.38	(0.6, 3.0)	0.415	1.46	(0.4, 5.3)	0.568
Postinjury factors
Postconcussion symptoms (RPQ)	151	1.07	(1.0, 1.1)	<0.001	1.08	(0.9, 1.4)	0.512
Posttraumatic stress (PTSS-10)	150	1.06	(1.0, 1.1)	<0.001	0.96	(0.9, 1.0)	0.331
Anxiety and depression (HAD)	143	1.14	(1.0, 1.2)	<0.001	1.16	(1.0, 1.3)	0.035	1.14	(1.1, 1.2)	<0.001
Expectation of favourable outcome	149	2.28	(1.1, 4.7)	0.026	0.61	(0.1, 3.2)	0.554
Subjective health complaints (SHC)	151	1.08	(1.0, 1.1)	<0.001	1.01	(0.9, 1.2)	0.883
Widespread pain (numbers of painful body areas)	149	1.35	(1.1, 1.7)	0.003	0.83	(0.5, 1.3)	0.379
Headache (NRS)	148	1.20	(1.1, 1.4)	0.004	0.90	(0.7, 1.2)	0.463
Neck pain (NRS)	148	1.29	(1.1, 1.5)	<0.001	1.08	(0.8, 1.4)	0.577
Low back pain (NRS)	146	1.19	(1.1, 1.3)	0.005	1.15	(0.9, 1.5)	0.280
Glasgow Outcome Scale Extended (GOSE)	149			0.001			0.017			0.034
Severe and moderate disability (GOSE < 6)		1			1			1
Moderate disability (GOSE = 6)		0.32	(0.1, 0.8)		0.17	(0.0, 0.7)		0.24	(0.1, 0.9)
Good recovery (GOSE > 6)		0.05	(0.0, 0.2)		0.03	(0.0, 0.5)		0.06	(0.0, 0.6)
Sick-listed at 2 months (baseline)	151	7.78	(3.3, 18.3)	<0.001	10.16	(2.6, 40.0)	0.001	6.84	(2.3, 19.9)	<0.001

Significance: P < 0.05 marked bold.