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Birth order and birth rate bias: findings in a representative sample of the adult population of Great Britain

Published online by Cambridge University Press:  31 July 2008

E. H. Hare  and
J. S. Price
E. H. Hare
Affiliation:
The Maudsley Hospital, London
J. S. Price
Affiliation:
The Maudsley Hospital, London
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Summary

Birth order and family size have been studied in a representative sample (10,000) of the adult population of Great Britain. This was done to test theoretical predictions about the ways in which the birth-order distribution in a population sample will be biased by secular changes in family size. The principal predictions were that, in a sample born during a period when family size was decreasing, the distribution of birth ranks in the larger families would be biased towards an over-representation of later born subjects (i.e. those lower in birth order), while in smaller families there would be an under-representation of later born. In a sample born during a period when family size was increasing, the reverse effects would occur. It was also predicted that among subjects from large families there would be an excess of females; and that the extent of the bias due to decrease in family size would be greatest in the unskilled and least in the highly skilled social classes.

The findings confirmed these predictions. The sample also showed an un-predicted excess of subjects in the middle ranks of families. It is suggested that the hypothesis of birth rate bias may be used for predicting the type of birth-order distribution to be expected in a sample of any population.

Type
Research Article
Information
Journal of Biosocial Science , Volume 6 , Issue 2 , April 1974 , pp. 139 - 150
Copyright
Copyright © 1974, Cambridge University Press

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References

Barker, D.J.P. & Record, R.G. (1967) The relationship of the presence of disease to birth order and maternal age. Am. J. hum. Genet. 19, 433.Google Scholar
Barry, H. & Barry, H. (1971) Birth order of psychiatric patients. Nature, Lond. 231, 57.Google Scholar
Birtchnell, J. (1972) Birth order and mental illness—a control study. Soc. Psychiat. 7, 167.CrossRefGoogle Scholar
Bytheway, B. (1974) A statistical trap associated with family size. J. biosoc. Sci. 6, 67.CrossRefGoogle ScholarPubMed
Greenwood, M. & Yule, G.U. (1914) On the determination of size of family and of the distribution of characters in order of birth from samples taken through members of sibships. J. roy. statist. Soc. 77, 179.Google Scholar
Hare, E.H. (1974) A note on the distribution of family sizes in the adult population of Great Britain, 1972. J. biosoc. Sci. (in press).CrossRefGoogle ScholarPubMed
Hare, E.H. & Price, J.S. (1969) Birth order and family size: bias caused by changes in birth rate. Br. J. Psychiat. 115, 647.Google Scholar
Hare, E.H. & Price, J.S. (1970) Birth rank in schizophrenia: with a consideration of the bias due to changes in birth-rate. Br. J. Psychiat. 116, 409.CrossRefGoogle ScholarPubMed
Heron, D. (1907) A first study of the statistics of insanity and the inheritance of the insane diathesis. Eugen. Lab. Mem. 2, 1.Google Scholar
Price, J.S. & Hare, E.H. (1969) Birth order studies: some sources of bias. Br. J. Psychiat. 115, 633.CrossRefGoogle ScholarPubMed
Registrar General (1966) Annual Report for the Year 1963, Part III, Table C44. HM Stationery Office, London.Google Scholar
Registrar General for Scotland (1963) Annual Report for 1961, Table 1 (p. 94). HM Stationery Office, Edinburgh.Google Scholar