Table 4.

Sick leave among the working population in each subgroup after 3 months (n = 462)

	Odds ratios (95% CI)	Odds ratios (95% CI)	Odds ratios (95% CI)
	Model I: Unadjusted association	Model II: Adjusted for duration	Model III: Adjusted for duration, general health, activity limitation
Subgroups	p = 0.02	p = 0.04	p = 0.7
Local LBP [reference]
LBP + pain above knee	1.44 (0.64 – 3.26)	1.45 (0.64 – 3.28)	1.21 (0.50 – 2.91)
LBP + pain below knee	1.23 (0.57 – 2.63)	1.18 (0.55 – 2.54)	0.84 (0.37 – 1.91)
LBP + NRI	2.25 (1.21 – 4.19)*§	2.13 (1.13 – 4.00)*§	1.21 (0.61 – 2.43)
	AUC = 0.58	AUC = 0.60

*p < 0.05 in comparison with Local LBP.

^§p < 0.05 in comparison with LBP + pain below knee.

AUC Area under the Receiver Operating Characteristic curve.