Table 4.
Descriptive statistics (mean±standard deviation) for the 2PN, 1PN, 3PN, lysed, fertilization failure (0PN), cleavage formation, blastocyst formation, and clinical pregnancy rates in the asthenozoospermic subgroup
| Groups | A-NP (n=56) | A-IM (n=57) | A-M (n=182) | OAT (n=356) | N (n=162) |
|---|---|---|---|---|---|
| 2PN rate | 0.7358±0.0559N,A-M,OAT | 0.7260±0.0519N,A-M,OAT | 0.7620±0.0484N,A-NP,A-IM,OAT | 0.5977±0.0752* | 0.8242±0.0499* |
| 1PN rate | 0.0107±0.0307 | 0.0078±0.0237 | 0.0147±0.0292 | 0.018±0.039 | 0.0056±0.0199 |
| 3PN rate | 0.0260±0.0448 | 0.0153±0.0392 | 0.0201±0.038 | 0.0514±0.0543 | 0.0078±0.0211 |
| Lysed rate | 0.0176±0.0411 | 0.0193±0.0411 | 0.0153±0.0321 | 0.0355±0.0497 | 0.0076±0.0218 |
| 0PN rate | 0.2099±0.0644N,OAT | 0.2317±0.0704N,A-M,OAT | 0.1880±0.0687N,A-IM,OAT | 0.2460±0.0749* | 0.1551±0.0511* |
| Cleavage formation rate | 0.8190±0.0835A-IM,OAT | 0.7138±0.0906 | 0.8045±0.0729A-IM,OAT | 0.78±0.10 | 0.801±0.087A-IM,OAT |
| Blastocyst formation rate | 0.4871±0.0585 | 0.4390±0.0642N | 0.4672±0.0496 | 0.4526±0.0681N | 0.4835±0.0411A-IM,OAT |
| Clinical pregnancy rate, n/total (%) | 18/56 (32.14) | 21/57 (36.84) | 73/182 (40.11) | 115/356 (32.30) | 73/162 (45.06) |
A Kruskal–Wallis test and a Wilcoxon post hoc analysis were employed for the statistical evaluation. Statistical significance is set at P=0.00625. The letters in superscript indicate statistically significant differences for their respective groups. *Statistically significant differences for all other groups. PN: pronuclei; A-NP: nonprogressive asthenozoospermic group; A-IM: the immotility group; A-M: the mild asthenozoospermic subgroup; OAT: oligoasthenoteratozoospermia; N: normal semen analysis