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Regression analysis of the dependent variable fatigue according to data from the questionnaire and other variables
| Variable | Beta | T | P-value |
|---|---|---|---|
| Vitamin D | -0.369 | -5.416 | 0.001 |
| Age | -0.016 | -0.96 | 0.92 |
| Work history | 0.058 | 0.35 | 0.72 |
| Number of shifts per month | 0.063 | 0.9 | 0.36 |
