Table 1 Abnormal results of CMA and karyotype analysis in 1452 pregnant women with DS screening abnormalities
Group | Total | CMA results/case | Karyotype analysis results/case | P-value |
|---|---|---|---|---|
Enlarged NT | 493 | 46 | 39 | > 0.05 |
Abnormal serum screening | 959 | 28 | 12 | < 0.05 |
Total | 1452 | 74 | 51 | < 0.05 |