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Relationship Between Shift Duration and MVC or Near-MVC
| Hours worked | Shifts with MVC or near/MVC |
OR (95% CI) | P Value | |
|---|---|---|---|---|
| No | % | |||
| ≤ 8.5 | 20 | 15.7 | 1.00 | |
| > 8.5 - < 12.5 | 96 | 22.3 | 1.40 (0.84–2.33) | 0.20 |
| ≥ 12.5 | 166 | 31.3 | 1.84 (1.06–3.20) | 0.03 |
MVC refers to motor vehicle crash; OR, odds ratio; CI, confidence interval.
