Table I.
Effects of patient and blastocyst morphology characteristics on pregnancy
| Pregnancy | No pregnancy | p-value a | ||
|---|---|---|---|---|
| Transfers | 67 | 105 | ||
| Female age at freezing (yr) | 31.5 ± 4.0 | 31.3 ± 4.8 | 0.767 | |
| Female age at transfer (yr) | 31.8 ± 4.0 | 31.6 ± 4.8 | 0.762 | |
| BMI (kg/m2) | 21.2 ± 2.7 | 21.3 ± 2.9 | 0.845 | |
| Basal FSH (mIU/ml) | 8.2 ± 2.6 | 8.3 ± 2.4 | 0.765 | |
| Duration of infertility (yr) | 4.9 ± 2.4 | 4.7 ± 3.5 | 0.665 | |
| No of earlier cycles | 1.4 ± 0.9 | 1.4 ± 1.1 | 0.778 | |
| Endometrial thickness (mm) | 8.9 ± 1.3 | 8.5 ± 1.3 | 0.046 b | |
| Primary infertility rate (%) | 34.3 | 32.4 | 0.791 | |
| Expansion grade | ||||
| 4 | 19 (28.4%) | 31 (29.5%) | 0.382 | |
| 3 | 35 (52.2%) | 45 (42.9%) | ||
| 2 | 13 (19.4%) | 29 (27.6%) | ||
| ICM grade | ||||
| A | 19 (28.4%) | 16 (15.2%) | 0.037 b | |
| B | 48 (71.6%) | 89 (84.8%) | ||
| TE grade | ||||
| A | 14 (20.9%) | 22 (21.0%) | 0.987 | |
| B | 44 (65.7%) | 68 (64.8%) | ||
| C | 9 (13.4%) | 15 (14.3%) | ||
a
Independent t-test and chi-square.
b
significant differences (p<0.05) between pregnancy and no pregnancy group