Table 2 Continuous risk factors for LBP lasting seven or more consecutive days after one year of follow-up (LBP at t1) in univariate analyses.
Asymptomatic workers | Mildly symptomatic workers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
LBP at t1 | No LBP at t1 | P-value | LBP at t1 | No LBP at t1 | P-value | |||||
n | Median (Q1-Q3) | n | Median (Q1-Q3) | n | Median (Q1-Q3) | n | Median (Q1-Q3) | |||
Fingertip-to-floor distance (cm) | 34 | 0.0 (0.0–0.0) | 318 | 0.0 (0.0–5.3) | 0.094 | 52 | 0.0 (0.0 – 5.5) | 283 | 0.0 (0.0–3.3) | 0.524 |
Difference in excursion of the middle finger on the thigh between lateral flexion to the right and to the left (cm) | 34 | 1.3 (0.5 – 3.0) | 318 | 1.5 (1.0 – 3.0) | 0.818 | 52 | 1.0 (0.0 – 2.0) | 283 | 2.0 (0.5 – 3.0) | 0.003 |
Difference between the range in straight-leg-raising right -left (degrees) | 32 | 5.0 (0.0 – 10.0) | 318 | 5.0 (0.0 – 5.0) | 0.259 | 52 | 5.0 (0.0 – 5.0) | 278 | 5.0 (0.0 – 5.0) | 0.146 |
Difference between the range of the hamstring muscles right – left (degrees) | 31 | 0.0 (0.0 – 0.0) | 311 | 0.0 (0.0 – 5.0) | 0.440 | 52 | 0.0 (0.0 – 5.0) | 270 | 0.0 (0.0 – 5.0) | 0.799 |