Univariate relation between demographic variables, shift work, and work environment and lifestyle factors with the risk of being injured in an occupational accident
| Variable | Crude RR | 95% CI |
|---|---|---|
| Age | ||
| Under 30 | 1 | – |
| 30–39 | 0.73 | 0.38 to 1.41 |
| 40–49 | 0.86 | 0.46 to 1.62 |
| 50+ | 0.54 | 0.26 to 1.14 |
| Gender: males versus females | 2.43 | 1.39 to 4.27 |
| Education | ||
| High | 1 | – |
| Medium | 5.79 | 2.83 to 11.87 |
| Low | 7.38 | 3.64 to 14.98 |
| Shift work | ||
| Daytime only, between 7 am and 7 pm | 1 | – |
| Irregular shifts but no night shift versus day time job | 4.76 | 2.42 to 9.35 |
| Irregular shifts with night shifts versus day time | 2.74 | 1.84 to 4.09 |
| Work environment | ||
| Environment I office environment as reference | 1 | – |
| Environment II, with machines and tools versus I | 5.03 | 3.32 to 7.63 |
| Environment III other, versus I | 1.63 | 0.58 to 4.62 |
| Smoking every day, yes versus no | 2.04 | 1.38 to 3.00 |
| Drinking over 14 glasses of alcoholic beverages weekly, yes versus no | 0.78 | 0.41 to 1.50 |