Factual, statistical and logical issues in the search for a paternal age effect for Down syndrome
β Scribed by Ernest B. Hook; Philip K. Cross; Ronald R. Regal
- Publisher
- Springer
- Year
- 1990
- Tongue
- English
- Weight
- 183 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0340-6717
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We aimed to determine how differences in the age at which women had their pregnancies influenced the expected detection and false-positive rates of serum screening for Down 's syndrome (i) between 1970 and 1993 in England and Wales, and (ii) between regions and districts of England and Wales in 1991