Table 3.
Aneuploidy in age-specific groups
| Sequential medium | Single-step medium | Relative risk | 95% confidence interval | p value | |
|---|---|---|---|---|---|
| Number (%) | Number (%) | ||||
| Age < 38 | |||||
| Number of PGT-A cycles | 133 | 169 | |||
| Number of biopsied blastocysts | 712 | 822 | |||
| Blastocysts per cycle (n) | 5.1 ± 3.7 | 5.0 ± 3.5 | 0.825 | ||
| Euploid blastocysts per cycle (n) | 3.3 ± 2.8 | 2.6 ± 2.2 | 0.009 | ||
| Aneuploidy | 259 (36.4%) | 366 (44.5%) | 1.2229 | 1.0811–1.3833 | 0.001 |
| Euploidy | 448 (62.9%) | 451 (54.9%) | 0.8720 | 0.8019–0.9482 | 0.003 |
| Cycle with no euploid blastocyst | 10 (5.5%) | 24 (9.6%) | 1.8888 | 0.9362–3.8106 | 0.147 |
| Age ≥ 38 | |||||
| Number of PGT-A cycles | 97 | 177 | |||
| Number of biopsied blastocysts | 335 | 528 | |||
| Blastocysts per cycle (n) | 3.2 ± 2.7 | 3.1 ± 2.8 | 0.580 | ||
| Euploid blastocysts per cycle (n) | 1.1 ± 1.6 | 0.8 ± 1.3 | 0.308 | ||
| Aneuploidy | 221 (66.0%) | 363 (68.8%) | 1.0421 | 0.9467–1.1472 | 0.395 |
| Euploidy | 108 (32.2%) | 163 (30.9%) | 0.9761 | 0.7986–1.1929 | 0.761 |
| Cycle with no euploid blastocyst | 43 (26.2%) | 92 (34.1%) | 1.1967 | 0.9175–1.5609 | 0.089 |
Aneuploidy and euploidy rates were expressed per number of biopsied blastocysts