Multidisciplinary programme for rehabilitation of chronic low back pain – factors predicting successful return to work

Table 4 Multivariate analysis of ability to return to work

Parameters	Coefficient	Standard error	Wald	p-value	Odds Ratio	95% CI
Initial Job Demand (ref.: very heavy)			20.779	< 0.001*
Sedentary	24.035	27,721.7	0.000	0.999	2.742 × 10¹⁰
Light	24.806	8502.8	0.000	0.998	5.929 × 10¹⁰
Medium	4.011	0.880	20.763	< 0.001*	55.199	9.833–309.880
Heavy	3.075	0.815	14.242	< 0.001*	21.658	4.385–106.969
Smoking (ref.: Smoker)	0.224	0.500	0.201	0.654	1.251
IOD (ref.: Yes)	0.260	0.943	0.076	0.783	1.296
Pre-programme BDI	−0.022	0.031	0.495	0.482	0.979
Pre-programme SFSS	0.013	0.006	4.355	0.037*	1.013	1.001–1.026
Pre-programme BABS	0.214	0.153	1.963	0.161	1.239

SFSS Spinal Function Sort Score, BDI Beck Depression Inventory, BABS Bradburn Affect Balance Scale
* denotes p-value < 0.05

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