Table 3.
Odds ratios (OR) with 95% confidence intervals for multi-site musculoskeletal pain at least one time per week within the last 3 months
| OR | 95% CI | OR | 95% CI | OR | 95% CI | ||||
|---|---|---|---|---|---|---|---|---|---|
| Lower | Upper | Lower | Upper | Lower | Upper | ||||
| Model I | Model II | Model III | |||||||
| Duty belt | |||||||||
| No discomfort | 1 | 1 | 1 | ||||||
| Discomfort | 5.81** | 4.91 | 6.86 | 5.42** | 4.57 | 6.42 | 5.42** | 4.56 | 6.43 |
| Body armour | |||||||||
| No discomfort | 1 | 1 | 1 | ||||||
| Discomfort | 2.85** | 2.25 | 3.61 | 2.73** | 2.15 | 3.48 | 2.69** | 2.11 | 3.42 |
| Time of shift sitting in vehicle (%) | |||||||||
| < 25% | 1 | 1 | 1 | ||||||
| 25–50% | 0.94 | 0.72 | 1.22 | 0.93 | 0.71 | 1.22 | 0.97 | 0.74 | 1.28 |
| 50–75% | 1.07 | 0.82 | 1.39 | 1.06 | 0.81 | 1.39 | 1.11 | 0.84 | 1.47 |
| > 75% | 1.13 | 0.80 | 1.59 | 1.05 | 0.74 | 1.50 | 1.10 | 0.77 | 1.57 |
| Exposure to physical workload factors | |||||||||
| Low | – | – | – | 1 | 1 | ||||
| Medium | – | – | – | 1.91** | 1.60 | 2.28 | 1.95** | 1.63 | 2.34 |
| High | – | – | – | 3.42** | 1.61 | 7.26 | 3.50** | 1.64 | 7.43 |
| Job demands | |||||||||
| Low | – | - | - | 1 | 1 | ||||
| High | – | – | – | 1.46** | 1.25 | 1.70 | 1.46** | 1.25 | 1.71 |
| Job control | |||||||||
| Low | – | – | – | 1 | 1 | ||||
| High | – | – | – | 1.02 | 0.85 | 1.21 | 1.00 | 0.83 | 1.19 |
| Social support | |||||||||
| Low | – | – | – | 1 | 1 | ||||
| High | – | – | – | 0.82 | 0.65 | 1.03 | 0.85 | 0.67 | 1.07 |
| Physical exercise per week | |||||||||
| < 2 h | – | – | – | – | – | – | 1 | ||
| > 2 h | – | – | – | – | – | – | 0.82* | 0.70 | 0.97 |
| Age | |||||||||
| 25–29 years | – | – | – | – | – | – | 1 | ||
| 30–34 years | – | – | – | – | – | – | 1.05 | 0.85 | 1.30 |
| 35–39 years | – | – | – | – | – | – | 1.06 | 0.84 | 1.35 |
| 40–44 years | – | – | – | – | – | – | 1.29 | 0.98 | 1.69 |
| 45–49 years | – | – | – | – | – | – | 1.18 | 0.83 | 1.68 |
| > 50 years | – | – | – | – | – | – | 1.12 | 0.82 | 1.52 |
| Sex | |||||||||
| Men | – | – | – | – | – | – | 1 | ||
| Women | – | – | – | – | – | – | 1.17 | 0.98 | 1.39 |
Model I. Duty belt, body armour and sitting in vehicle
Model II. Model I + exposure to physical work load factors and psychosocial factors
Model III. Model II + physical exercise, age and sex
Significant results are shown in bold. *P < 0.05 and **P < 0.001