Subject | 1 | 14 | 29 | 37 |
Maternal age | 27.5 | 39.2 | 38.4 | 39 |
T21 combined risk | >1:50 | 1:62 | 1:118 | 1:318 |
Double test risk | >1:50 | >1:50 | ||
Risk by age | 1:837 | 1:101 | 1:123 | 1:99 |