The Feasibility of Choosing D4 Embryo Transfer—Analysis of Nanomaterials Affecting the Outcome of Frozen-Thaw Embryo Transfer

Table 3

Analysis of multiple factors affecting the pregnancy outcome of frozen-thaw embryo transfer cycle.

	OR (95% CI)	P
Age
≤35
>35	0.64 (0.54–0.76)
Endometrial thickness (cm)
≤0.8
0.81∼1.0	1.56 (1.28–1.89)
>1.0	1.74 (1.42–2.13)
BMI (kg/m2)
≤18.5
18.6∼23.9	1.03 (0.75–1.42)
24∼26.9	1.29 (0.91–1.81)
27∼29.9	1.33 (0.91–1.94)
>30	1.23 (0.80–1.89)
Number of embryos transferred
1
2	1.76 (1.46–2.14)
Day of embryo transferred
D3
D4	1.81 (1.01–3.25)
D5	2.41 (1.95–2.98)
D6	1.36 (1.13–1.63)