Table 1 Maternal characteristics and gestational age of blood sampling
From: The significance of trisomy 7 mosaicism in noninvasive prenatal screening
Clinical basic information | Number |
|---|---|
Racial | |
 Han nationality | 30 |
 Chuang nationality | 4 |
 Unknown | 1 |
 Maternal age | 30.8 |
 BMI | 21.5 |
Conception of pregnancy | |
 Naturally conceived | 35 |
 Other | 0 |
Fetus number | |
 Singleton | 35 |
 Other | 0 |
Smoking | |
 Yes | 0 |
 None | 35 |
 GA at NIPT | 20 weeks and 4 days |
 Average maternal age | 9 |
Pregnancy risk factors | |
 High risk of T21 | 15 |
 Intermediate risk of T21 | 9 |
 Single HCG MOM↑ | 4 |
 HCG MOM↑ | 28 |
 Widening of posterior cranial fossa | 2 |
 Threatened premature birth | 1 |
 Rh incompatibility | 1 |