Table 3.

Final model for associations between LBP-variables at baseline and social background variables (odds ratios with 95% confidence intervals). Significant findings are indicated with bold typing.

N = 1708	LBP n = 710	LLBP n = 157
IQ-score low	1.00	1.00
IQ-score medium	1.09 (0.81–1.48)	1.09 (0.69–1.73)
IQ-score high	1.19 (0.84–1.68)	0.95 (0.54–1.68)
Sedentary occupation	0.84 (0.65–1.08)	0.55 (0.33–0.90)*
Parents grade school	1.00	1.00
Parents high school	1.39 (1.05–1.84)*	1.67 (1.05–2.64)*
Parents >12 years education	1.23 (0.93–1.64)	1.33 (0.82–2.17)
Years of school	-	0.98 (0.89–1.08)

*: p < 0.05, **: p < 0.01