Table 1.
Descriptive statistics (mean±standard deviation) for the male partner’s age, female partner’s age, reproductive hormone levels, number of oocytes retrieved, and number of mature metaphase II oocytes obtained
| Groups | O (n=229) | A (n=295) | T (n=83) | OA (n=232) | OT (n=213) | AT (n=285) | OAT (n=356) | N (n=162) | P |
|---|---|---|---|---|---|---|---|---|---|
| Male age (year) | 41.01±3.45 | 40.55±3.16 | 41.21±2.25 | 41.12±3.31 | 41.69±3.27 | 41.39±2.88 | 41.17±3.01 | 40.72±3.11 | 0.85 |
| Female age (year) | 35.72±1.87 | 36.03±2.01 | 35.76±2.22 | 35.76±1.95 | 35.70±1.48 | 35.68±1.65 | 35.71±1.78 | 35.72±1.91 | 0.76 |
| FSH (IU l−1; on day 3) | 7.76±2.35 | 7.95±2.43 | 8.09±2.21 | 7.10±2.38 | 7.35±2.19 | 7.86±2.25 | 8.25±2.87 | 7.59±2.91 | 0.78 |
| E2 (pg ml−1; on hCG day) | 3269±652 | 3176±588 | 3007±635 | 2861±699 | 2784±711 | 3104±667 | 3062±658 | 2874±609 | 0.85 |
| Number of oocytes retrieved | 15.94±4.64 | 14.08±4.84 | 14.37±4.44 | 15.01±4.71 | 13.69±4.67 | 13.86±4.49 | 14.14±4.73 | 14.14±4.60 | 0.09 |
| Number of MII oocytes | 14.81±3.99 | 12.53±4.29 | 14.02±4.04 | 13.53±4.53 | 12.44±4.13 | 12.69±4.35 | 12.14±4.04 | 12.31±4.80 | 0.07 |
| Cycles with total fertilization failure | 3 | 6 | 3 | 4 | 5 | 5 | 10 | 3 | 0.97 |
A Kruskal–Wallis test and a Wilcoxon post hoc analysis were employed for the statistical evaluation. FSH: follicle-stimulating hormone recorded on day 3 of menstrual cycle; E2: estradiol recorded on the day of hCG triggering; hCG: human chorionic gonadotropin; O: oligozoospermia; A: asthenozoospermia; T: teratozoospermia; OA: oligoasthenozoospermia; OT: oligoteratozoospermia; AT: asthenoteratozoospermia; OAT: oligoasthenoteratozoospermia; N: normal semen analysis; MII: metaphase II