Table 2.
Results of analysis of covariance (ANCOVA) models between selenium levels and depressive symptoms measured by GDS score adjusting for other factors (n = 1735)a
| |
Without Cognitive Score |
With Cognitive Score |
||||
|---|---|---|---|---|---|---|
| Variable | Estimate | Std Err | p-value | Estimate | Std Err | p-value |
| Age, years |
0.10 |
0.03 |
0.0002 |
−0.00 |
0.03 |
0.8688 |
| Attended school vs no school |
−1.40 |
0.29 |
<0.0001 |
−0.41 |
0.29 |
0.1681 |
| Live alone |
1.37 |
0.35 |
0.0001 |
1.53 |
0.34 |
<0.0001 |
| Ever drink alcohol |
−0.97 |
0.29 |
0.0009 |
−0.74 |
0.28 |
0.0093 |
| Body mass index |
−0.12 |
0.04 |
0.0012 |
−0.05 |
0.04 |
0.1470 |
| History of stroke |
1.96 |
0.86 |
0.0223 |
1.62 |
0.83 |
0.0500 |
| History of heart attack |
3.31 |
0.80 |
<0.0001 |
3.55 |
0.77 |
<0.0001 |
| History of head injury |
2.74 |
0.72 |
0.0001 |
2.49 |
0.69 |
0.0003 |
| History of fracture |
3.00 |
1.05 |
0.0042 |
2.36 |
1.01 |
0.0190 |
| Selenium, μg/g |
−1.66 |
0.77 |
0.0321 |
−0.93 |
0.75 |
0.2143 |
| Composite cognitive z-score | −0.38 | 0.20 | <0.0001 | |||
a Two subjects had missing information on history of stroke.