| Table 1. Distribution of Chromosomal Sexes in Embryos by Culture Day, Fertilization Technique, Embryo Quality, and Chromosomal Status. | ||||
| Category | Subcategory | Female Blastocyst (XX) |
Male Blastocyst (XY) |
p - value |
|---|---|---|---|---|
| Embryo culture day | Day 5 | 48.9% (441/901) |
51.1% (460/901) |
0.527 |
| Day 6 | 52.6% (529/1006) |
47.4% (477/1006) |
0.101 | |
| Day 7 | 52.6% (51/97) |
47.4% (46/97) |
0.612 | |
| In vitro fertilization techniques | IVF | 48.4% (220/455) |
51.6% (235/455) |
0.482 |
| ICSI | 51.7% (801/1549) |
48.3% (748/1549) |
0.178 | |
| Embryo quality | Good | 50.6% (671/1327) |
49.4% (656/1327) |
0.681 |
| Fair | 52.8% (332/629) |
47.2% (297/629) |
0.163 | |
| Poor | 37.5% (18/48) |
62.5% (30/48) |
0.083 | |
| Chromosomal Status | Euploid | 50.7% (447/882) |
49.3% (435/882) |
0.686 |
| Mosaic | 57.30% (153/267) |
42.70% (114/267) |
0.017* | |
| Aneuploidy | 49.2% (421/855) |
50.8% (434/855) |
0.657 | |