Table 4.

Multivariate logistic regression models of clinical PR according to age, embryo quality and quantity, endometrial thickness, and DAF in cleavage embryo/blastocyst FET cycles. Data are presented as OR (95% CI).

Variables	Day 3 embryos	Day 5 embryos
Age, years
≤30	4.651 (1.659–13.039)	1.788 (0.979–3.268)
31–37	4.691 (1.753–12.553)	0.996 (0.546–1.817)
>37	1.00 (reference)	1.00 (reference)
DAF, mm
≤3	0.899 (0.206–3.924)	1.519 (0.736–3.134)
3–15	2.379 (0.764–7.406)	1.810 (1.118–2.931)
≥15	1.00 (reference)	1.00 (reference)
Embryo quality and quantity
SET day 3 (A/B)	1.00 (reference)
DET day 3 (B+B)	0.996 (0.435–2.281)
DET day 3 (A+B)	1.824 (0.854–3.896)
DET day 3 (A+A)	3.618 (1.672–7.829)
SET day 5 (B)	−	1.00 (reference)
SET day 5 (A)	−	2.078 (1.310–3.295)
DET day 5 (A/B+ A/B)	−	3.415 (1.818–6.415)
Endometrial thickness, mm
<4	1.00 (reference)	1.00 (reference)
≥4	4.386 (1.155–16.660)	1.945 (1.076–3.516)