Table 3.
Descriptive statistics (mean±standard deviation) for the 2PN, 1PN, 3PN, lysed, fertilization failure (0PN), cleavage formation, blastocyst formation, and clinical pregnancy rates in the oligozoospermic subgroup
| Groups | O-M (n=91) | O-S (n=77) | O-VS (n=61) | OAT (n=356) | N (n=162) |
|---|---|---|---|---|---|
| 2PN rate | 0.7950±0.0779O-S,O-VS,0AT | 0.7545±0.0604N,O-M,OAT | 0.7169±0.0451N,O-M,OAT | 0.5977±0.0752* | 0.8242±0.0499O-S,O-VS,OAT |
| 1PN rate | 0.0072±0.0305 | 0.0169±0.0333 | 0.0252±0.0396 | 0.0181±0.0391 | 0.0056±0.0199 |
| 3PN rate | 0.0163±0.0357O-VS,OAT | 0.01±0.03O-VS,OAT | 0.0437±0.0481N,O-M,O-S | 0.0514±0.0543N,O-M,O-S | 0.0078±0.0211O-VS,OAT |
| Lysed rate | 0.0226±0.0412 | 0.0132±0.0306 | 0.0343±0.0434 | 0.0355±0.0497 | 0.0076±0.0218 |
| 0PN rate | 0.1589±0.0635O-S,OAT | 0.2031±0.0681N,O-M,O-VS | 0.7861±0.0668O-S,OAT | 0.246±0.075N,O-M,O-VS | 0.155±0.051O-S,OAT |
| Cleavage formation rate | 0.8293±0.0602O-S | 0.7861±0.0668O-M,O-VS | 0.8359±0.0466O-S | 0.78±0.10N | 0.801±0.087OAT |
| Blastocyst formation rate | 0.4754±0.0676 | 0.4638±0.0806 | 0.479±0.074 | 0.4526±0.0681N | 0.4835±0.0411OAT |
| Clinical pregnancy rate, n/total (%) | 40/91 (43.96) | 31/77 (40.26) | 24/61 (39.34) | 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; O-M: oligozoospermia-mild; O-VS: oligozoospermia- severe; O-VS: oligozoospermia-very severe; OAT: oligoasthenoteratozoospermia; N: normal semen analysis