Table 3.
Serum 25 (OH) D concentrations in relation to clinical outcomes of IVF: univariate and multivariate logistic analysis
| Outcomes | Group1 | Group2 | Group 3 | Group 4 |
|---|---|---|---|---|
| Number of cycles | 216 | 210 | 211 | 211 |
| Clinical pregnancy rate (%) | 59.2% | 57.9% | 60.0% | 63.5% |
| Univariate (OR(95%CI),P) | 1 | 0.947 (0.567–1.581),0.836 | 1.035 (0.618–1.734),0.895 | 1.200 (0.718–2.006),0.486 |
| Multivariatea (OR(95%CI),P) | 1 | 1.007 (0.578–1.752),0.981 | 0.988 (0.562–1.737),0.968 | 1.173 (0.674–2.043),0.573 |
| Implantation rate (%) | 42.9% | 41.4% | 44.5% | 43.9% |
| Univariate (OR(95%CI),P) | 1 | 0.941 (0.651–1.361),0.747 | 1.069 (0.741–1.541),0.722 | 1.043 (0.726–1.499),0.818 |
| Multivariatea (OR(95%CI),P) | 1 | 0.958 (0.647–1.419),0.931 | 1.024 (0.690–1.518),0.907 | 1.021 (0.693–1.506),0.915 |
| Abortion rate (%) | 8.5% | 10.0% | 2.8% | 8.8% |
| Univariate (OR(95%CI),P) | 1 | 1.398 (0.459–4.260),0.556 | 0.637 (0.172–2.362),0.500 | 1.373 (0.463–4.070),0.567 |
| Multivariatea (OR(95%CI),P) | 1 | 1.319 (0.365–4.768),0.673 | 0.732 (0.171–3.126)0.673 | 1.302 (0.373–4.544),0.679 |
| Live birth rate (%) | 53.3% | 48.8% | 56.7% | 55.6% |
| Univariate (OR(95%CI),P) | 1 | 0.833 (0.502–1.381),0.478 | 1.144 (0.688–1.903),0.604 | 1.094 (0.662–1.807),0.726 |
| Multivariatea (OR(95%CI),P) | 1 | 0.876 (0.507–1.515),0.636 | 1.089 (0.624–1.901),0.765 | 1.078 (0.626–1.856),0.787 |
Values are significantly different between groups (P < 0.05)
aAdjusted for maternal age, BMI, AMH, type of infertility, previous pregnancy, seasons when samples were taken, COH protocol, duration of stimulation, number of oocytes retrieved, endometrial thickness, serum progesterone levels on the day of hCG and the number of embryo transferred