Fresh embryo transfer | Frozen-thawed embryo transfer | ||||
---|---|---|---|---|---|
Adjusted OR (95% CI) | P | Adjusted OR (95% CI) | P | ||
BMI (kg/m2) | |||||
< 18.5 | Reference | Reference | |||
18.5–23.9 | 0.98 (0.70–1.37) | 0.894 | 1.15 (0.89–2.05) | 0.513 | |
≥ 24 | 0.89 (0.75–1.06) | 0.205 | 1.24 (0.94–2.65) | 0.367 | |
Infertility type | / | ||||
Primary | Reference | / | |||
Secondary | 1.19 (1.02–1.40) | 0.032 | / | ||
Tubal factor existed | |||||
Yes | 1.57 (1.24–2.58) | 0.017 | 1.32 (0.87–1.93) | 0.081 | |
No | Reference | Reference | |||
Peak Estrogen level (pg/ml) | / | ||||
< 2500 | Reference | / | |||
[2500–5000) | 1.04 (0.86–1.25) | 0.686 | / | ||
[5000–7500) | 1.38 (1.08–1.75) | 0.009 | / | ||
≥ 7500 | 1.75 (1.27–2.39) | 0.001 | / | ||
Endometrial thickness (mm) | |||||
Thin (< 7) | 3.04 (1.88–4.93) | < 0.001 | 5.10 (2.33–10.17) | 0.000 | |
Medium (8–13) | 1.50 (1.24–1.81) | < 0.001 | 2.14 (1.09–4.18) | 0.027 | |
Thick (≥ 14) | Reference | Reference | |||
Type of embryos | |||||
Cleavage | 1.62 (1.09–2.42) | 0.018 | 1.63 (1.13–2.33) | 0.008 | |
Blastocyst | Reference | Reference | |||
No. of embryos transferred | |||||
1 | Reference | Reference | |||
2 | 1.22 (0.58–2.57) | 0.602 | 1.24 (0.83–2.96) | 0.291 | |
3 | 1.31 (0.67–2.55) | 0.432 | 1.47 (0.96–3.41) | 0.072 |