Table 2

Relation between psychosocial work factors and return to work at two (n = 128) and six (n = 122) months after carpal tunnel release surgery

Variable	Two months						Six months
Variable	ORc	95% CI	p value <0.25*	ORa†	95% CI	p value <0.05	ORc	95% CI	p value <0.25*	ORa‡	95% CI	p value <0.05
ORc, crude odds ratio; CI, confidence interval.
*Exposures variables with p values higher than 0.25 in the crude models are not carried forward to the adjusted models.
†Adjusted odds ratio for baseline work role functioning, depression and workers’ compensation claimant due to carpal tunnel syndrome (see text).
‡Adjusted odds ratio for baseline work role functioning, baseline self efficacy, improving in self efficacy, and organisational support (see text).
§Psychological job demands and job control are also adjusted for each other in the adjusted models.
Psychological job demands§
Low	1						1
High	0.72	0.37–1.39	0.327				0.95	0.41–1.91	0.881
Job control§
High	1			1			1			1
Low	0.55	0.28–1.07	0.079	1.87	0.76–4.58	0.174	0.24	0.12–0.50	<0.005	0.64	0.23–1.75	0.381
Karasek quadrants (I)
Low strain	1			1			1			1
Passive	0.43	0.18–1.01	0.052	1.03	0.36–2.95	0.952	0.48	0.16–1.43	0.190	1.11	0.29–4.31	0.882
Active	0.57	0.25–1.29	0.079	0.22	0.09–0.59	0.003	2.36	0.81–6.88	0.115	1.03	0.27–3.93	0.966
High strain	0.45	0.16–1.31	0.143	0.93	0.26–3.32	0.909	0.26	0.10–0.64	0.003	0.35	0.09–1.49	0.148
Job strain quotient
1st to 3rd quartile	1						1			1
4th quartile	0.59	0.24–1.49	0.264				0.24	0.09–0.59	0.002	0.14	0.04–0.43	0.001
Karasek quadrants (II)
Passive	1			1			1			1
Low strain	2.35	0.99–5.58	0.052	0.97	0.34–2.77	0.952	2.07	0.70–6.10	0.190	0.90	0.23–3.51	0.882
High strain	1.06	0.35–3.24	0.913	0.90	0.23–3.55	0.888	0.53	0.17–1.64	0.274	0.32	0.86–1.17	0.084
Active	1.34	0.55–3.26	0.513	0.22	0.65–0.74	0.014	4.88	1.41–16.95	0.013	0.93	0.23–3.73	0.917
Active learning quotient
1st to 3rd quartile	1			1			1			1
4th quartile	1.70	0.79–3.66	0.177	0.64	0.26–1.53	0.313	3.84	1.42–10.36	0.008	0.93	0.27–3.26	0.915