| Table 1. Age and specific cycle characteristics and their incidence in singleton and monozygotic splitting groups | |||
| Age and specific cycle characteristics | Singleton (n=845) |
MZT (n=14) |
p-value |
| Age Mean ± SD Maternal Donor Paternal |
39.93±4.96 24.77±3.74 41.74±7.08 |
38.42±5.27 23.50±4.95 38.67±4.04 |
0.295a 0.632a 0.452a |
| Source of the eggs n (%) Own Donated |
273 (32.3) 572 (67.7) |
6 (42.9) 8 (57.1) |
0.403b |
| Type of ET cycle n (%) Fresh Frozen |
455 (53.8) 390 (46.2) |
4 (28.6) 10 (71.4) |
0.060b |
| PGT-A n (%) - + |
601 (71.1) 244 (28.9) |
5 (35.7) 9 (64.3) |
0.004b |
aStudent's test
bPearson's chi-squared test (χ2)