Table 3.
Comparison of placental and amniotic abnormalities between pregnancies after frozen-thawed and fresh ET.
| Frozen-thawed ET N = 211 Number of cases (%) |
Fresh ET N = 915 Number of cases (%) |
P value | |
|---|---|---|---|
| Preeclampsia | 2 (0.9) | 28 (3.1) | 0.098 |
| 1st trimester bleeding | 14 (6.6) | 74 (8.1) | 0.570 |
| 2nd trimester bleeding | 2 (0.9) | 27 (2.9) | 0.144 |
| 3rd trimester bleeding | 0 (0.0) | 18 (2.0) | 0.034* |
| Polihydramnion | 2 (0.9) | 7 (0.8) | 0.679 |
| Oligohydramnion | 3 (1.4) | 18 (2.0) | 0.781 |
| Placenta accreta | 7 (3.3) | 29 (3.2) | 0.831 |
| Placenta praevia | 0 (0.0) | 32 (3.5) | 0.002* |
| Retained placenta | 10 (4.7) | 34 (3.7) | 0.553 |
| Manual removal of placenta | 11 (5.2) | 51 (5.6) | 1.000 |
*Statistically significant (P < 0.05), as revealed by Chi-square.