H. Nicolaides, "Maternal age- and gestation-specific risk for trisomy 21," Ultrasound Obstet Gynecol, vol. 13, p. 167170, December 1999.Snijders RJM, Sundberg K, Holzgreve W, Henry G, Nicolaides KH. Maternal age- and gestation-specific risk for trisomy 21. Ultrasound Obstet Gynecol. 1999;...
HUST Theriskincreaseswiththematernalage Maternalage<2525-2930-3435-3940-44>45Average Theincidence1:18001:15001:8001:2501:1001:501:650 TheincidenceofDS （‰）Maternalage（Y）Dept.ofPediatrics,TongjiHospital,HUST Inmeiosis,apairof21stchromosomedoesnotdivided 90%oftheabnormalcellsareeggs 21 21 ...
HUST Maternalage 放射线 Radiation Infection Chemicals Mothercyesis Geneticfactors Dept.ofPediatrics,TongjiHospital,HUST Theriskincreaseswiththematernalage Maternalage<2525-2930-3435-39TheincidenceTheincidenceofDS1:18001:15001:8001:250 40-44>45 Average 1:1001:50 1:650 （‰）Maternalage（Y）
Trisomy 21(7年) 热度: maternal age and risk for trisomy 21 assessed by the origin of chromosome nondisjunction a report from the atlanta and national down syndrome projects 热度: 《计算机光盘软件与应用》10年20-21期计算机期刊,计算机论文,计算机杂志 ...
Correction: Maternal age-specific risk for trisomy 21 based on the clinical performance of NIPT and empirically derived NIPT age-specific positive and negative predictive values in JapanSince the advance online publication of this article, the authors of the above paper have noticed errors in the ...
assessment of riskoftrisomy21by maternal age and fetal nuchal translucency thickness at 10–14 weeks of gestation. fetalmedicineusa.com fetalmedicineusa.com 出現臍膨出 而染色體異常的胎兒中,約 85%出現NT增厚,染色體正常胎兒中 則有40%。 fetalmedicineusa.com ...
age of mothers was lower due to an increased risk of death for the mother during childbirth in pre-modern times and assisted reproductive technologies allowing increased instances of motherhood at older ages in modern populations, although this lower mean age may be offset by an increased age of...
Adaptive-filtering of trisomy 21: risk of Down syndrome depends on family size and age of previous child 来自 Springer 喜欢 0 阅读量: 19 作者:Markus,Neuhäuser,Sven,Krackow 摘要: The neonatal incidence rate of Down syndrome (DS) is well-known to accelerate strongly with maternal age. This ...
Patient-specific risks for trisomy 21 and detection and false-positive rates were calculated. The median maternal age was 34 (range 15-49) years. Chromosomal abnormalities were identified in 330 pregnancies, including 196 cases of trisomy 21. The estimated risk for trisomy 21 was 1 in 300 or ...
This criteria may, as well, be expressed by a pathological threshold of NT varying with maternal age and gestational age. Without questioning that women aged of 38 years or older are a high-risk group, this approach should allow an improvement of the prenatal screening for trisomy 21. 展开 ...