Table 2.
Maternal and obstetric parameters in pregnancies with live born after AC-FET group and NC-LPS group
| AC-FET | NC-LPS | P value | |
|---|---|---|---|
| No. of cycles | 1025 | 3872 | |
| Maternal age (year) | 30 (27, 33) | 30 (27, 33) | 0.506 |
| BMI (kg/m2) | 21.3 (19.7, 23.2) | 21.1 (19.5, 22.9) | 0.012 |
| Basal FSH (miu/ml) | 5.9 (5.0, 7.1) | 6.2 (6.1, 7.2) | 0.003 |
| Primary subfertility | 452 (44.1) | 1717 (44.3) | 0.888 |
| Endometrial thickness (mm) on translate day | 10.9 (10.0, 11.8) | 11.6 (10.6, 12.6) | 0.001 |
| Number of transferred embryos (%) | 0.375 | ||
| 1 | 125 (12.5) | 421 (10.9) | |
| 2 | 833 (81.3) | 3218 (83.1) | |
| 3 | 67 (6.5) | 233 (6.0) | |
| Blastomere or blastocyst transfer (%) | < 0.001 | ||
| Blastomere transfer | 568 (55.5) | 2414 (62.3) | |
| Blastocyst transfer | 453 (44.5) | 1458 (37.7) | |
| The day of development of frozen embryos | 0.001 | ||
| Day 3 | 747 (56.3) | 2887 (61.3) | |
| Day 4 | 1 (0.1) | 0 | |
| Day 5 | 468 (35.3) | 1530 (23.5) | |
| Day 6 | 110 (8.3) | 291 (6.2) | |
| Good-quality rate of the embryo implanted | 623 (60.8) | 2333 (60.3) | 0.759 |
| Teratospermia | 91 (8.9) | 348 (9.0) | 0.913 |
| Oligoasthenozoospermia | 135 (13.2) | 486 (12.6) | 0.596 |
| Oviduct factor | 897 (87.5) | 3426 (88.5) | 0.391 |
| Obstetric outcomes (%) | |||
| Diabetes arising in pregnancy | 84 (8.2) | 314 (8.1) | 0.929 |
| Hypertensive disorder | 74 (7.2) | 162 (4.2) | < 0.001 |
| Bleeding disordera | 12 (1.2) | 26 (0.7) | 0.105 |
| Gestational cholestasis | 3 (0.3) | 9 (0.2) | 0.729 |
| Polyhydramnios | 11 (1.1) | 27 (0.7) | 0.223 |
| Oligohydramnios | 28 (2.7) | 93 (2.4) | 0.545 |
| Infection | 13 (1.3) | 47 (1.2) | 0.888 |
| Vanish twin | 99 (9.7) | 408 (10.8) | 0.412 |
| Caesarean sectionb | 837 (85.9) | 3029 (78.4) | < 0.001 |
Values expressed as N (%) or median (1st quartile, 3rd quartile). P values are from Wilcoxon rank sum tests for continuous variables and the χ2 test or Fisher’s exact tests for categorical variables
a. Including bleeding due to placenta previa, abruptio placentae, haemorrhage after 20th week of gestation
b. Two cases of twin pregnancy delivery, a fetal vaginal delivery, a fetal caesarean delivery