Table 1 Maternal age and fetal chromosomal abnormality indicators
Abnormal indicators | ≧40 | 35–39 | 30–34 | 25–29 | < 25 | Total, n |
|---|---|---|---|---|---|---|
Positive serological | 7 | 9 | 22 | 32 | 11 | 81 |
Positive NIPT | 9 | 10 | 11 | 3 | 1 | 34 |
Abnormal ultrasound | 3 | 7 | 11 | 15 | 0 | 36 |
Age factor | 13 | 11 | 2 | 0 | 0 | 26 |
History of abnormal pregnancy | 0 | 0 | 0 | 1 | 0 | 1 |
Positive NIPT+ Positive serological | 3 | 4 | 2 | 7 | 4 | 20 |
Positive NIPT+ Abnormal ultrasound | 1 | 0 | 0 | 3 | 1 | 5 |
Abnormal ultrasound+ Positive serological | 0 | 1 | 0 | 0 | 0 | 1 |
Cases, n | 36 | 42 | 48 | 61 | 17 | 204 |