Table 2 The results of CMA and karotyping on 1044 pregnancies with single advanced maternal age (≥ 35)
Age | Number | Aneuploidy | BCAs | CNV | CNV | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
P | LP | ||||||||||
35 | 77 | 0 | (0.00%) | 2 | (2.60%) | 0 | (0.00%) | 0 | (0.00%) | 0 | (0.00%) |
36 | 298 | 1 | (0.34%) | 4 | (1.34%) | 4 | (1.34%) | 2 | (0.67%) | 2 | (0.67%) |
37 | 149 | 1 | (0.67%) | 0 | (0.00%) | 2 | (1.34%) | 2 | (1.34%) | 0 | (0.00%) |
38 | 133 | 1 | (0.75%) | 1 | (0.75%) | 2 | (1.50%) | 2 | (1.50%) | 0 | (0.00%) |
39 | 119 | 1 | (0.84%) | 1 | (0.84%) | 0 | (0.00%) | 0 | (0.00%) | 0 | (0.00%) |
40 | 96 | 1 | (1.04%) | 0 | (0.00%) | 1 | (1.04%) | 1 | (1.04%) | 0 | (0.00%) |
≥ 41 | 172 | 3 | (1.74%) | 0 | (0.00%) | 3 | (1.74%) | 2 | (1.16%) | 1 | (0.58%) |
All | 1044 | 8 | (0.77%) | 8 | (0.77%) | 12 | (1.15%) | 9 | (0.86%) | 3 | (0.29%) |