Variable | Crude OR (95% CI) | p value | Adjusted OR (95% CI)* | p value† |
---|---|---|---|---|
Age, yr | 0.96 (0.89–1.04) | 0.3 | 0.98 (0.90–1.07) | 0.7 |
Body mass index | 0.92 (0.86–1.00) | 0.05 | 0.94 (0.87–1.01) | 0.1 |
Day 5 embryos transferred (v. day 3) | 1.50 (0.81–2.90) | 0.2 | 1.28 (0.61–2.77) | 0.5 |
25-Hydroxy-vitamin D, mmol/L | 1.02 (1.00–1.03) | 0.2 | 1.01 (1.00–1.03) | 0.05 |
Note: CI = confidence interval, OR = odds ratio. *Analyses adjusted for age, BMI, number of day 5 embryos transferred and 25 OH-D level. †Statistically significant, p < 0.05.