Multivariate analyses for neck and upper extremity symptoms in the past 12 months
| Risk factors | Neck pain OR (95% CI) | Wrist/hand pain OR (95% CI) | Shoulder pain OR (95% CI) | Elbow pain OR (95% CI) | Comorbidity OR (95% CI) |
|---|---|---|---|---|---|
| Age (years) | |||||
| 20–30 | 1 | 1 | 1 | 1 | 1 |
| 31–40 | 0.98 (0.35 to 2.74) | 1.21 (0.57 to 2.57) | 0.67 (0.28 to 1.64) | 0.76 (0.40 to 1.44) | 0.66 (0.32 to 1.33) |
| 41–50 | 0.57 (0.14 to 2.30) | 1.20 (0.36 to 3.92) | 0.31 (0.09 to 1.12) | 0.74 (0.34 to 1.60) | 0.34 (0.15 to 0.76)* |
| 51–60 | 1.79 (0.18 to 18.28) | 0.40 (0.05 to 3.23) | 0.20 (0.03 to 1.42) | 0.30 (0.08 to 1.20) | 0.60 (0.17 to 2.07) |
| Exercise | |||||
| No | 1 | ||||
| Yes | 0.37 (0.14 to 1.00)* | NS | NS | NS | NS |
| Working hours per day | 1.43 (1.03 to 1.98)* | NS | NS | NS | NS |
| Specific tool size selection | |||||
| Yes | NS | 1 | 1 | NS | 1 |
| No | 2.47 (1.15 to 5.32)* | 2.07 (1.00 to 4.32)* | 2.56 (1.25 to 5.27)* | ||
| Job demand | NS | 1.09 (1.02 to 1.17)* | 1.09 (1.00 to 1.18)* | 1.11 (1.03 to1.19)** | 1.11 (1.03 to 1.20)** |
The multivariate analyses for each musculoskeletal symptom included those variables with p<0.10 during the univariate analyses. *Represents p<0.05 in regression analysis, **represents p<0.01. NS: not significant in the regression model.