Age related amniocentesis | Maternal serum screening | Fetal echocardiography | |
---|---|---|---|
Assumed uptake of test | 501-150 | 81 | 91 |
Assumed detection rate | 100 | 61/911-151 | 15 |
Assumed amniocentesis rate | 83/591-151 | 75 | |
Assumed termination rate | 100 | 90 | 100 |
Effective reduction | 50 | 37/391-151 | 10 |
Proportion of population screened1-152 | 33 | 100 | 34 |
Total effective reduction1-164 | 17 | 37/391-151 | 3 |