Results of the clinical examination of controls and cases
| Variable | Controls† (n=91) [%] | Cases† (n=148) [%] | Odds ratio* | 95% CI |
|---|---|---|---|---|
| *Adjusted for age and sex. | ||||
| †Controls are defined to be nurses indicating no pain at baseline; cases are defined to be nurses indicating either more than 30 days LBP within the preceding 12 months or 8–30 days and at the same time disability during work or leisure time. | ||||
| ‡Fisher test. | ||||
| Shape of the spine (frontal) | ||||
| Normal | 85 | 58 | 1 | |
| Scoliosis | 14 | 33 | 3.4 | 1.7 to 6.8 |
| Shift | 1 | 10 | 11.9 | 1.5 to 93.5 |
| Shape of the spine (sagittal) | ||||
| Normal | 80 | 49 | 1 | |
| Hunchback | 3 | 12 | 6.1 | 1.7 to 21.8 |
| Hyperlordosis | 7 | 8 | 1.9 | 0.7 to 5.5 |
| Reduced lordosis | 10 | 31 | 5.0 | 2.2 to 11.0 |
| Positive straight leg raising test | 0 | 6 | indefinite | p=0.09 ‡ |
| Neurological signs | 8 | 12 | 1.8 | 0.7 to 4.7 |
| Radiating pain | 0 | 75 | indefinite | p<0.0001‡ |