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Note on the Takahashi effect

Published online by Cambridge University Press:  31 July 2008

William H. James
Affiliation:
Galton Laboratory, University College London

Extract

In England and Wales in 1938–68 the sex ratio of children liveborn or stillborn to women aged 45+ years was lower than the sex ratio among children born to women at any other age. This strengthens the suggestion that the high sex ratio reported by Takahashi among children born to elderly women in Japan is a spurious consequence of false registration.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1972

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References

Registrar General of England and Wales. Statistical Reviews for 1961 and 1966, Part 2, Table HH, Supplement 2.Google Scholar
Renkonen, K.O. (1964) Problems connected with the birth of male children. Acta genet. med. (Basel), 14, 177.Google ScholarPubMed
Takahashi, E. (1954) The effects of the age of the mother on the sex ratio at birth in Japan. Ann. N.Y. Acad. Sci. 57, 531.CrossRefGoogle Scholar