Table 4. Crude and adjusted logistic regression analyses with excessive sleepiness as the dependent variable.
| Crude | Adjusteda (N = 1535) | ||
| OR (95% CI | OR (95% CI) | ||
| Age | 0.99 (0.97–0.99) | 0.99 (0.97–1.00) | |
| Gender male | male | 1.00 | 1.00 |
| female | 1.43 (0.99–2.05) | 1.47 (0.99–2.17) | |
| Number of night shifts past year | 1.00 (1.00–1.00) | 1.00 (1.00–1.01) | |
| Years with night work | <5 | 1.00 | 1.00 |
| >5 | 0.89 (1.71–1.11) | 0.93 (0.73–1.18) | |
| Fraction of full position | 50–75% | 1.00 | 1.00 |
| 76–90% | 1.08 (0.85–1.65) | 1.18 (0.81–1.71) | |
| >90% | 1.21 (0.96–1.53) | 1.28 (0.97–1.67) | |
| Number of quick returns past year | 0 | 1.00 | 1.00 |
| 1–30 | 1.68 (1.18–2.40) | 1.53 (1.05–2.23) | |
| >30 | 1.93 (1.36–2.72) | 1.78 (1.24–2.57) |