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The lack of influence of parental age and birth order in the aetiology of nuclear sex chromatin‐negative Turner's syndrome

The lack of influence of parental age and birth order in the aetiology of nuclear sex... Summary Among seventy patients with nuclear sex chromatin Turner's syndrome sixty‐three individuals were found who had at least one liveborn sib. In these sixty‐three families the observed maternal age (25.413 ± 5.494, S.E. 0.692) did not differ significantly from the expected maternal mean (26.091 ± 5–262); nor did the paternal observed age (27.742 ± 5.651, S.E. 0.718) differ significantly from the expected paternal mean (28.421 ± 5.612). The observed birth ordinal (2.127 ± 1.550, S.E. 0.195) was not significantly different from expected birth ordinal (2.405 ± 1.644). Limitations due to residual fertility of parents are, in this survey, regarded as minimal. It is a pleasure to acknowledge that the beginnings of this survey lay in conversations between Prof. L. S. Penrose and one of us (S. H. B.). We wish to thank Mrs Barbara Latrobe and Mrs Jane Schultz for their assistance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Human Genetics Wiley

The lack of influence of parental age and birth order in the aetiology of nuclear sex chromatin‐negative Turner's syndrome

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References (13)

Publisher
Wiley
Copyright
Copyright © 1962 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0003-4800
eISSN
1469-1809
DOI
10.1111/j.1469-1809.1962.tb01522.x
Publisher site
See Article on Publisher Site

Abstract

Summary Among seventy patients with nuclear sex chromatin Turner's syndrome sixty‐three individuals were found who had at least one liveborn sib. In these sixty‐three families the observed maternal age (25.413 ± 5.494, S.E. 0.692) did not differ significantly from the expected maternal mean (26.091 ± 5–262); nor did the paternal observed age (27.742 ± 5.651, S.E. 0.718) differ significantly from the expected paternal mean (28.421 ± 5.612). The observed birth ordinal (2.127 ± 1.550, S.E. 0.195) was not significantly different from expected birth ordinal (2.405 ± 1.644). Limitations due to residual fertility of parents are, in this survey, regarded as minimal. It is a pleasure to acknowledge that the beginnings of this survey lay in conversations between Prof. L. S. Penrose and one of us (S. H. B.). We wish to thank Mrs Barbara Latrobe and Mrs Jane Schultz for their assistance.

Journal

Annals of Human GeneticsWiley

Published: Mar 1, 1962

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