Table 3 Univariate and multivariate logistic regression analysis of factors affecting depressive symptoms
Variables | Â | Unadjusted | Adjusteda | ||
|---|---|---|---|---|---|
| Â | ORb | 95 % CIc | ORb | 95 % CIc | |
Vitamin D | ≥10 | 1.00 |  | 1.00 |  |
(ng/ml) | <10 | 1.69 | 1.27–2.26 | 1.55 | 1.15–2.07 |
Shift work | No | 1.00 | Â | 1.00 | Â |
|  | Yes | 2.46 | 1.66–3.64 | 1.83 | 1.18–2.82 |
Education level | ≥college | 1.00 |  | 1.00 |  |
|  | ≤high school | 1.74 | 1.31–2.32 | 1.39 | 1.02–1.90 |
Age (years) | ≥30 | 1.00 |  | 1.00 |  |
|  | <30 | 1.55 | 1.15–2.09 | 1.15 | 0.82–1.62 |
Marital status | Married | 1.00 | Â | 1.00 | Â |
|  | Unmarried | 1.68 | 1.18–2.39 | 1.19 | 0.80–1.77 |