Prognostic factors for duration of sick leave due to low back pain related to work
| Prognostic factor | Pooled ES (95% CI) | + adjusted for quality | + adjusted for non-report of ES |
|---|---|---|---|
| –, pooling not possible; ES, effect size. | |||
| Heavy work (ref: light)23–26,31–33,35,36 | 1.40 (1.26 to 1.56) | 1.40 (1.27 to 1.55) | 1.39 (1.25 to 1.55) |
| Regularly work more than 8 hour shifts24,35,36 | 1.36 (0.97 to 1.92) | – | – |
| Work unsociable hours (ref: no)24 | 1.13 (0.82 to 1.56) | – | – |
| Time sitting per day (ref: no)24 | – | – | |
| <50% | 0.96 (0.68 to 1.34) | ||
| >75% | 1.38 (0.75 to 2.19) | ||
| Posture index31,32 | 1.16 (0.93 to 1.45) | – | – |
| Vibration perceived24,31–33 | 1.67 (0.99 to 2.81) | 1.98 (0.89 to 4.43) | – |
| Time driving per day (ref: no)24 | – | – | |
| <50% | 0.85 (0.60 to 1.21) | ||
| >75% | 1.82 (1.03 to 3.22) | ||
| Work tempo and quantity35,36 | 1.11 (1.00 to 1.37) | ||