Table 4.
Odds ratios and 95% confidence intervals of work-related musculoskeletal symptoms with gender stratification
| Weekly working hour | Upper limb pain | Lower limb pain | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Male | Female | Male | Female | ||||||
| OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | ||
| Crude | ≤40 | 1 | Reference | 1 | Reference | 1 | Reference | 1 | Reference |
| 41–52 | 1.50 | 1.37–1.65 | 1.22 | 1.16–1.33 | 1.39 | 1.24–1.55 | 1.17 | 1.06–1.29 | |
| > 52 | 1.90 | 1.73–2.10 | 1.96 | 1.76–2.18 | 2.09 | 1.87–2.34 | 1.98 | 1.77–2.22 | |
| Model I* | ≤40 | 1 | Reference | 1 | Reference | 1 | Reference | 1 | Reference |
| 41–52 | 1.37 | 1.24–1.51 | 1.28 | 1.16–1.41 | 1.27 | 1.13–1.43 | 1.23 | 1.10–1.38 | |
| > 52 | 1.47 | 1.32–1.64 | 1.77 | 1.57–2.00 | 1.52 | 1.34–1.73 | 1.56 | 1.40–1.72 | |
| Model II** | ≤40 | 1 | Reference | 1 | Reference | 1 | Reference | 1 | Reference |
| 41–52 | 1.36 | 1.23–1.50 | 1.26 | 1.14–1.39 | 1.26 | 1.11–1.42 | 1.20 | 1.07–1.35 | |
| > 52 | 1.40 | 1.25–1.57 | 1.66 | 1.46–1.89 | 1.47 | 1.29–1.68 | 1.47 | 1.28–1.69 | |
*Adjusted for gender, age, education, occupation, monthly income, employment status, shift work and number of employees
**Adjusted for gender, age, education, occupation, monthly income, employment status, shift work, number of employees, working motion or posture, job stress, and social support