Table 3.
Interactive effect of vitamin D and dietary magnesium intake on T2D (All participants).
| Variable | Low-magnesium intake | High-magnesium intake | P for interaction | ||
|---|---|---|---|---|---|
| (n = 5,094) | (n = 5,155) | ||||
| OR (95% CI) | P-value | OR (95% CI) | P-value | ||
| Vitamin D (nmol/L) | 0.968 (0.919–1.020) | 0.225 | 0.925 (0.883–0.970) | 0.002 | 0.001 |
| Subgroups | <0.001 | ||||
| Deficient (<50 nmol/L) | 1 (reference) | 1 (reference) | |||
| Suboptimal (50–75 nmol/L) | 0.843 (0.590–1.205) | 0.354 | 0.683 (0.519–0.899) | 0.009 | |
| Sufficient (>75 nmol/L) | 0.877 (0.596–1.289) | 0.507 | 0.647 (0.462–0.907) | 0.015 | |
| Trend test | 0.519 | 0.028 | |||
Adjusted for age, gender, race/ethnicity, obesity, education level, physical activity, smoking status, PIR, the season of examination, and dietary calcium intake.