Indication of prenatal invasive procedures for fetal karyotyping | AC (n=500) | CVS (n=224) | Total (n=724) |
Suspicious first trimester screening | 120 | 145 | 265 |
Increased nuchal translucency | 19 | 36 | 55 |
Suspicious biochemistry | 79 | 46 | 125 |
Combined elevated risk | 22 | 63 | 85 |
Maternal age | 223 | 33 | 256 |
Suspicious genetic history | 50 | 41 | 91 |
Suspicious ultrasound findings | 95 | 18 | 113 |
Other indications (request, infections, etc.) | 23 | 0 | 23 |
* Total number of indications larger than total population due to double indication |