Table 2.
Unadjusted and adjusted odds ratios for GDM according to vitamin D status
| Serum 25(OH)D level | Controls (n) | GDM (n) | Unadjusted OR (95% CI) | p-value | Adjusted OR (95% CI) a | p-value |
|---|---|---|---|---|---|---|
| 75+ nmol/L | 88 | 44 | 1.00 (Reference) | — | 1.00 (Reference) | — |
| 50–74.9 nmol/L | 24 | 11 | 0.92 (0.41–2.04) | 0.83 | 0.66 (0.27–1.59) | 0.36 |
| <50 nmol/L | 8 | 5 | 1.25 (0.39–4.05) | 0.71 | 0.78 (0.22–2.78) | 0.71 |
25(OH)D, 25-hydoxyvitamin D; OR, odds ratio; CI, confidence interval.
a
Adjusted for maternal age (continuous), insurance status (dichotomous), body mass index (continuous), gestational age at serum collection (continuous) and season of blood draw (winter, spring, summer, fall).