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Grandmaternal ages at birth of parents of children with down syndrome in St. Petersburg

✍ Scribed by N. V. Kovaleva; M. Tahmasebi-Hesari; D. K. Verlinskaya


Book ID
111495801
Publisher
Allerton Press Inc
Year
2010
Tongue
Ukrainian
Weight
160 KB
Volume
44
Category
Article
ISSN
0095-4527

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Grandmaternal age at birth of parents of
✍ Z. Papp; Γ‰. VΓ‘radi; Z. SzabΓ³ πŸ“‚ Article πŸ“… 1977 πŸ› Springer 🌐 English βš– 211 KB

The authors investigated the age of the parents and grandmothers of 262 children with simple trisomy 21. In cases in which the mother was under 30, the mean grandmaternal age was higher than that of the controls. This might mean that some of these cases, being the children of old mothers, began thei