Table 4.
Results of multivariable analysis of psychological and physical predictive risk factors for shoulder complaints adjusted for age, sex and history of complaints
| Risk factor | Bivariate analysis | Multivariable analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P-value | OR (95% CI) | P-value | |
| Computer working hours/day | 2.3 (0.05–1.62) | 0.09 | 1.2 (1.0–1.50) | 0.01 |
| Previous history of complaints | 0.9 (0.36–1.56) | 0.01 | 19.2 (9.8–28.6) | 0.00 |
| Equipment position | 0.7 (0.36–0.78) | 0.46 | 0.8 (0.6–1.23) | 0.47 |
| Personal computer placement | 0.1 (0.07–0.17) | 0.05 | 1.2 (0.7–2.20) | 0.38 |
| Awkward body posture | 0.2 (0.15–0.41) | 0.07 | 1.0 (0.9–1.10) | 0.77 |
| Irregular head and body posture | 0.2 (0.15–0.41) | 0.01 | 1.1 (1.0–1.31) | 0.02 |
| Decision authority | 1.3 (0.25–0.91) | 0.19 | 0.9 (0.8–1.00) | 0.22 |
| Skills discretion | 0.6 (0.24–042) | 0.51 | 0.9 (0.8–1.21) | 0.98 |
| Job pressure | 1.7 (0.02–0.27) | 0.08 | 0.1 (0.9–1.01) | 0.97 |
| Task difficulty | 1.5 (0.07–0.60) | 0.12 | 1.2 (0.9–1.40) | 0.06 |
| Social support | 0.4 (0.17–0.52) | 0.62 | 1.0 (0.9–1.10) | 0.12 |
| Work flow | 1.4 (0.02–0.64) | 0.60 | 0.9 (0.7–1.10) | 0.76 |
| Job strain | 0.7 (0.28–0.62) | 0.94 | 27.8 (16.2–36.1) | 0.28 |