| Tabela II. Clinical and laboratory detalls of the studied groups during the thawing cycles. | |||
| during fresh cycles. | Group I (L-ZT) | Group II (Not L-ZT) | P |
|---|---|---|---|
| Patient | 90 | 45 | |
| Age | 32.4 ± 4.7 | 32.9 ± 4.5 | 0.3 |
| Frozen embryos | 6.2± 4.6 | 6A±3.6 | 0.1 |
| Thawed embryos (total) | 3.3± 1 .4 | 3.5 ± 1 .0 | 0.08 |
| Cleaved embryos transferred | 2.2 ± 1 .0 | 2. 1 ± 1 .0 | 0.6 |
| Pregnancy rate | 26.6% | 20% | 0.5 |
| Abortion rate | 20.8 | 22.2 | 1 |