| Table 2. Frozen embryo transfer cycle characteristics of the three treatment groups | ||||
| Characteristic | Group 1 (E2 gel) n=30 | Group 2 (E2 oral) n=30 | Group 3 (E2 patch) n=30 | p value |
| Nº of embryos thawed A and/or B | 1.66±0.41 | 1.67±0.48 | 1.12±0.85 | .38 |
| Nº of embryos transferred | 1.76±0.17 | 1.80±0.29 | 1.90±0.30 | .54 |
| Implantation rate (%) | 22.32±27.99 | 21.78±30.85 | 19.94±20.87 | .79 |
| Clinical PR, % (nº) | 46.6 (14/30) | 46.6 (14/30) | 50.0 (15/30) | .84 |
| Miscarriage rate % (nº) | 14.2 (2/14) | 14.2 (2/14) | 13.3 (2/15) | .43 |
| Multiple-pregnancy rate, % (nº) | 3.33 (1/30) | 3.33 (1/30) | 3.33 (1/30) | .65 |
| Δ E2level on thawing day/beta day | 88.28±4.53 | 80.93±4.14 | 79.41±5.38 | .13 |
| Δ P level on thawing day/beta day | 0.12±0.13 | 0.12±0.14 | 0.11±0.18 | .15 |
Note: p< .05 was considered statistically significant. Data is expressed as mean ± SD or as percentage and number.
Δ - Mean of Variation of hormone profile