All (n=392) | Field (n=273) | Administrative (n=119) | ||||
---|---|---|---|---|---|---|
Disc level | β | p Value | β | p Value | β | p Value |
L1–2 | 0.02020 | 0.0001 | 0.02445 | 0.0002 | 0.01482 | 0.1275 |
L2–3 | 0.03387 | <0.0001 | 0.03655 | <0.0001 | 0.02645 | 0.0154 |
L3–4 | 0.03926 | <0.0001 | 0.04693 | <0.0001 | 0.01915 | 0.0991 |
L4–5 | 0.04773 | <0.0001 | 0.05504 | <0.0001 | 0.03398 | 0.0053 |
L5–S1 | 0.03822 | <0.0001 | 0.04532 | <0.0001 | 0.02584 | 0.0547 |
Data are β and p value of age in analysis of covariance (adjusted for gender, body mass index, socioeconomic status and work-related variables). L and S refer to lumbar and sacral vertebrae, respectively.