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Follow-up of all NIPT positives
| T21 | T18 | T13 | SCAs | |
|---|---|---|---|---|
| Amniocentesis karyotypes | 117 | 40 | 26 | 94 |
| Abnormal | 105 | 25 | 12 | 48 |
| Normal | 12 | 15 | 14 | 46 |
| Newborn karyotypes | 14 | 3 | 2 | 10 |
| Abnormal | 11 | 2 | 1 | 3 |
| Normal | 3 | 1 | 1 | 7 |
| No karyotyping | 6 | 3 | 3 | 49 |
| Total | 137 | 46 | 31 | 153a |
aFour cases were lost to follow-up
