This study documents the changes in the percentages of advanced maternal age (AMA) pregnancies in the United States and in Washington State, underlying demographic factors, the impact on the predicted incidence of Down syndrome, and its impact on Down syndrome screening. Data on births in the United
β¦ LIBER β¦
Issues in analysis of data on paternal age and 47,+21: implications for genetic counseling for Down syndrome
β Scribed by Ernest B. Hook
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 452 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0340-6717
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Precision and accuracy in determining rates of Down syndrome at livebirth are indispensible to algorithms which determine eligibility for prenatal cytogenetic diagnostic services. W e derived Down syndrome rates by single year of maternal age which we propose as a revised rate schedule for backgroun