Groups | Univariate | Multivariatea | ||
---|---|---|---|---|
OR (95% CI) | P | OR (95% CI) | P | |
Quartiles | ||||
 1st quartile (≥ 20.8 ng/mL) | 1 (reference) |  | 1 (reference) |  |
 2nd quartile (16.4–20.7 ng/mL) | 1.07 (0.960–1.196) | 0.219 | 1.14 (1.014–1.284) | 0.028 |
 3rd quartile (13.0–16.3 ng/mL) | 1.20 (1.072–1.336) | 0.001 | 1.26 (1.114–1.415) | <  0.001 |
 4th quartile (<  13.0 ng/mL) | 1.35 (1.210–1.501) | <  0.001 | 1.40 (1.240–1.572) | <  0.001 |
Vitamin D inadequacy | ||||
 Normal (≥ 30 ng/mL) | 1 (reference) |  | 1 (reference) |  |
 Inadequacy (<  30 ng/mL) | 1.33 (1.071–1.639) | 0.010 | 1.44 (1.150–1.800) | 0.001 |
Vitamin D deficiency | ||||
 Normal (≥ 20 ng/mL) | 1 (reference) |  | 1 (reference) |  |
 Deficiency (<  20 ng/mL) | 1.20 (1.102–1.309) | <  0.001 | 1.25 (1.137–1.373) | <  0.001 |