Table 1. Baseline characteristics of the included patients.
SD: standard deviation; PGT: preimplantation genetic testing
| Characteristics | Total (n=73) |
| Female age, years (mean ± SD) | 35.52 ± 4.72 |
| Male age, years (mean ± SD) | 38.86 ± 5.89 |
| Body mass index, kg/m2 (mean ± SD) | 21.41 ± 2.22 |
| Anti-Mullerian hormone, ng/mL (mean ± SD) | 3.70 ± 2.57 |
| Female blood type, n (%): | |
| 1/ A | 19 (26) |
| 2/ B | 19 (26) |
| 3/ O | 26 (35.6) |
| 4/ AB | 9 (12.4) |
| Male blood type, n (%): | |
| 1/ A | 13 (17.8) |
| 2/ B | 24 (32.9) |
| 3/ O | 29 (39.7) |
| 4/ AB | 7 (9.6) |
| Type of infertility, n (%) | |
| 1/ Primary infertility | 20 (27.4) |
| 2/ Secondary infertility | 53 (72.6) |
| Indication for PGT, n (%): | |
| 1/ Elderly couple | 9 (12.3) |
| 2/ Repeated implantation failure | 3 (4.1) |
| 3/ Repeated pregnancy loss | 21 (28.8) |
| 4/ Abnormal genetics | 40 (54.8) |
| Female karyotype result, n (%): | |
| 1/ Normal | 63 (86.3) |
| 2/ Abnormal | 10 (13.7) |
| Male karyotype result, n (%): | |
| 1/ Normal | 58 (79.5) |
| 2/ Abnormal | 15 (20.5) |
| Sperm quality, n (%): | |
| 1/ Normal | 49 (67.1) |
| 2/ Abnormal | 21 (28.8) |
| 3/ Surgical | 3 (4.1) |
| No. of retrieved oocytes (mean ± SD) | 16.48 ± 7.25 |
| No. of mature oocytes (mean ± SD) | 13.00 ± 6.11 |
| No. of immature oocytes (mean ± SD) | 2.21 ± 2.31 |
| No. of abnormal oocytes (mean ± SD) | 1.07 ± 1.68 |