Prognostic factors for duration of sick leave due to low back pain related to worker and the workers’ health
| Prognostic factor | Pooled ES (95% CI) | + adjusted for quality | + adjusted for non-report of ES |
|---|---|---|---|
| –, pooling not possible; ES, effect size. | |||
| Age (10 y interval)20,22,24–26,30–32,35,36 | 1.30 (1.17 to 1.44) | 1.31 (1.18 to 1.45) | – |
| Gender (ref: male)20,23–26,29–36 | 1.18 (1.04 to 1.34) | 1.18 (1.04 to 1.35) | 1.16 (1.10 to 1.23) |
| Educational level24–26,34 | 1.17 (0.84 to 1.62) | – | 1.12 (0.88 to 1.42) |
| Marital status24–28,34 | 1.05 (0.85 to 1.31) | 1.05 (0.86 to 1.29) | 1.00 (0.61 to 1.65) |
| No. of dependants27,28,34 | 1.11 (0.99 to 1.24) | – | – |
| BMI (ref: normal weight)22,24 | 1.68 (1.01 to 2.81) | – | 1.38 (0.84 to 2.26) |
| Smoking23,24,35,36 | 1.12 (0.83 to 1.50) | 1.10 (0.90 to 1.34) | – |
| Physical fitness23,24,35,36 | 1.30 (0.80 to 2.09) | – | 1.10 (0.90 to 1.34) |
| General health question (GHQ (ref: <6)23,24 | 2.78 (2.00 to 3.87) | 1.76 (0.65 to 4.79) | – |
| Vitality34 | 1.03 (1.00 to 1.05) | – | – |
| Health transition34 | 2.30 (1.12 to 4.72) | – | – |