Table 2.
Odds ratios (OR) and their 95% confidence intervals (CI) for the association of BMI with positive pregnancy outcome.
| Studied factor | Positive pregnancy women | Negative pregnancy women | OR | 95% CI | P-trend |
|---|---|---|---|---|---|
| Body mass index (kg/m2)∗ | 0.04 | ||||
| <25 | 17 | 34 | 1.00 | Ref. | |
| 25–<30 | 37 | 147 | 0.50 | 0.25–0.99 | |
| ≥30 | 21 | 93 | 0.45 | 0.21–0.95 | |
| Body mass index (kg/m2)† | |||||
| <25 | 17 | 34 | 1.00 | Ref. | |
| 25–<30 | 37 | 147 | 0.50 | 0.25–0.99 | |
| ≥30 | 21 | 93 | 0.45 | 0.20–0.99 |
*Unadjusted model.
†Model adjusted by age groups, type of infertility, number of embryo transfer, HCG days endometrial thickness, and hormonal profiles.