Table 4.
Combating Fatigue—Yes | Odds Ratio | 95% Confidence Interval | p-Value |
---|---|---|---|
Personal factors | |||
Age category | |||
<35 years | Ref | ||
35–44 years | 0.883 | 0.387–2.016 | 0.768 |
45–54 years | 0.303 | 0.133–0.691 | 0.005 |
>55 years | 0.303 | 0.133–0.695 | 0.005 |
Education level | |||
Above high school | Ref | ||
High school and lower | 0.894 | 0.482–1.657 | 0.722 |
Financial stress | |||
Low | Ref | ||
High | 1.627 | 0.875–3.024 | 0.124 |
Occupational factors | |||
Payment type | |||
Flat rate | Ref | ||
Per trip/delivery | 2.149 | 0.796–5.805 | 0.131 |
Single-time pay | 2.139 | 0.941–4.862 | 0.070 |
Kilometre rate | 1.886 | 0.796–4.467 | 0.149 |
Other | 2.676 | 0.967–7.406 | 0.058 |
Work time and schedule | |||
Low-risk | Ref | ||
High-risk | 0.903 | 0.466–1.751 | 0.763 |
Work-task | |||
Low-risk | Ref | ||
Moderate-risk | 1.912 | 0.898–4.068 | 0.093 |
High-risk | 1.152 | 0.453–2.931 | 0.766 |
Environmental factors | |||
Workplace violence | |||
No | Ref | ||
Yes | 1.527 | 0.819–2.846 | 0.183 |
Regulatory factors | |||
Breaking rules and regulations | |||
No | Ref | ||
Yes | 1.300 | 0.671–2.522 | 0.437 |
Lifestyle factors and health risks | |||
Exercise | |||
Does not meet the guidelines | Ref | ||
Meets the guidelines | 0.676 | 0.378–1.210 | 0.187 |
Smoking | |||
Non-smoker | Ref | ||
Smoker | 2.468 | 1.282–4.751 | 0.007 |
Drinking | |||
Light drinker | Ref | ||
Heavy drinker | 1.615 | 0.897–2.909 | 0.110 |
Sleep | |||
Low-risk | Ref | ||
High-risk | 1.454 | 0.696–3.041 | 0.320 |
Pain | |||
No | Ref | ||
Yes | 1.243 | 0.641–2.411 | 0.519 |
Loneliness | |||
No | Ref | ||
Yes | 1.077 | 0.586–1.982 | 0.811 |
Ref = reference. Bold values denote statistical significance at the p < 0.05 level.