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Congenial malformation between the groups
| Fresh ET(N = 2059) | FET (N = 2053) | χ2 | P | |
|---|---|---|---|---|
| Neonatal malformation | 25 (1.2) | 18 (0.9) | 1.131 | 0.288 |
| Trisomy 13/18/21 | 8 (0.4) | 6 (0.3) | 0.281 | 0.596 |
| Congenital heart disease | 7 (0.3) | 3 (0.15) | 1.592 | 0.207 |
| Polydactyly/syndactyly | 5 (0.2) | 3 (0.15) | 0.495 | 0.482 |
| Others | 5 (0.2) | 6 (0.3) | 0.094 | 0.759 |
