Table 2 Relative risk ratios and their 95% confidence intervals (95% CI) from multinomial regression analysis for having non-melancholic or melancholic depressive symptoms
Variables | NmDS versus BDI < 10 RRR (95% CI) | P-value | MDS versus BDI < 10 RRR (95% CI) | P-value |
|---|---|---|---|---|
Vitamin B12 tertiles* | ||||
I | 1 (reference) | 0.28# | 1 (reference) | <0.001# |
II | 1.01 (0.72 to 1.41) | 1.90 (1.21 to 3.22) | ||
III | 1.20 (0.86 to 1.66) | 2.75 (1.66 to 4.56) | ||
Male sex | 0.59 (0.44 to 0.79) | <0.001 | 0.82 (0.54 to 1.23) | 0.34 |
Age | 1.02 (1.00 to 1.04) | 0.041 | 1.02 (1.00 to 1.05) | 0.091 |
BMI | 1.02 (1.00 to 1.05) | 0.11 | 0.98 (0.94 to 1.02) | 0.32 |
Smoking | 1.23 (0.88 to 1.71) | 0.23 | 1.41 (0.91 to 2.20) | 0.13 |
Using alcohol | 1.09 (0.81 to 1.45) | 0.59 | 0.84 (0.56 to 1.26) | 0.39 |
LTPA | <0.001# | 0.006# | ||
I | 1 (reference) | 1 (reference) | ||
II | 0.50 (0.37 to 0.68) | 0.42 (0.27 to 0.64) | ||
III | 0.24 (0.15 to 0.39) | 0.43 (0.24 to 0.76) | ||
Years of education | 0.98 (0.94 to 1.02) | 0.24 | 1.00 (0.95 to 1.06) | 0.99 |
Living alone | 1.29 (0.95 to 1.75) | 0.10 | 1.93 (1.30 to 2.88) | 0.001 |
Energy intake | 1.00 (1.00 to 1.00) | 0.90 | 1.00 (1.00 to 1.00) | 0.74 |
Use of antidepressive medication | 5.51 (3.55 to 8.54) | <0.001 | 9.45 (5.63 to 15.86) | <0.001 |
Chronic diseases sum index | 1.41 (1.26 to 1.59) | <0.001 | 1.21 (1.02 to 1.45) | 0.031 |