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.

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)