Table 4.

Logistic regression for professional training and pain factors associated with the employment status (n = 1.034); p < 0.05 are marked bold

		(Chi-square(10) = 225.55, p < 0.001, n = 1,034) Nagelkerkes R2 = 0.27
		OR (95%-CI)	p-values
Professional qualification	In current education vs no professional qualification	13.517 (4.438 – 41.166)	< 0,001
	Vocational and operational training vs. no professional qualification	2.991 (1.380 – 6.481)	0.005
	Vocational school education vs. no professional qualification	5.474 (2.338 – 12.815)	< 0,001
	Technical college, master craftsman school, vocational or technical academy vs. no professional qualification	4.314 (1.900 – 9.807)	< 0,001
	Bachelor degree vs. no professional qualification	7.692 (2.667 – 22.184)	< 0,001
	Diploma, Master's, Magister or State Examination completed at (technical) college or university vs. no professional qualification	12.116 (5.299 – 27.702)	< 0,001
	PhD, habilitation vs. no professional qualification	26.421 (5.755 – 121.295)	< 0,001
Pain	Medium vs. low pain	0.477 (0.340 – 0.669)	< 0,001
	Strong vs. low pain	0.436 (0.310 – 0.613)	< 0,001
Participation in vocational reintegration	yes vs. no	4.434 (3.311 – 5.939)	< 0,001