Group | N | AFP (KU/L) | AFP (MoM) | Free β- hCG (μg/L) |
---|---|---|---|---|
Non-AMA | 197,101 | 37.2(19.20 ~ 75.50) | 0.98(0.54 ~ 1.87) | 14.30(4.45 ~ 57.20) |
AMA | 12,739 | 37.9(19.30 ~ 77.50) | 1.05(0.56 ~ 1.99) | 14.30(4.27 ~ 59.75) |
z | 6.058 | 21.964 | 1.111 | |
P | < 0.001 | < 0.001 | 0.911 | |
Group | Free β- hCG (MoM) | Risk value of Trisomy 21 | Risk value of Trisomy 18 | |
Non-AMA | 0.99(0.33 ~ 3.60) | 1/3934(1/133 ~ 1/33336) | 1/46055(1/2477 ~ 1/100000) | |
AMA | 1.02(0.33 ~ 3.97) | 1/1003(1/25 ~ 1/9648) | 1/11686(1/624 ~ 1/44622) | |
z | 6.076 | 98.885 | 124.780 | |
P | < 0.001 | < 0.001 | < 0.001 |