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A Short Note on the Birth Order, Parental Age and the Incidence of Oral Clefts

Published online by Cambridge University Press:  01 August 2014

A. Bardhan
A. Bardhan*
Affiliation:
Dep. of Anthropology, Delhi University, Delhi

Summary

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A study of 6375 births from the records of two hospitals of Delhi reveals that the incidence of oral clefts is more or less constant in both males and females. Evidence indicates that plural births are more associated with the harelip, cleft palate and cleft lip, than single births. In the same way, there is a positive association between oral clefts and higher age groups of parents. For this fact it can be mentioned that the incidence of oral clefts is lower in lower birth ranks and higher in higher birth ranks, which is again indirectly influenced by the higher age group of parents.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 16 , Issue 1 , January 1967 , pp. 101 - 105
Copyright
Copyright © The International Society for Twin Studies 1967

References

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