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Intervals between births in families containing one set of twins

  • Grace Wyshak (a1)

Summary

Data for 6910 families each containing one set of twins have been obtained from genealogical records in the Archives of the Mormon Church in Salt Lake City and analysed according to intervals between births. The findings indicate that intervals following singleton females are shorter than those following singleton males, particularly in sibships in which the sex ratio (excluding twins) is high. This relationship holds, with few exceptions, when sibship size is held constant and whatever the sex of the following child. There is no evidence in these data that the interval between births is shorter when the children are of the same sex. Our most striking finding is that twins tend to be preceded by an unusually long interval.

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Cowgill, U.M. & Hutchinson, G.E. (1963) Sex ratio in childhood and the depopulation of the Peten, Guatemala. Hum. Biol. 35, 90.
Greenberg, R.A. (1963) Distribution of sexes within human families. Ph.D. thesis.
Potter, R.G. (1963) Birth intervals: structure and changes. Popul. Stud. 17, 20.
Renkonen, K.O. (1964) Problems connected with the birth of male children. Acta genet. Statist. med. 14, 177.
Schutzenberger, M.P. (1950) Nouvelles recherches sur la distribution du sexe à la naissance. Sem. Hôp. Paris, 26, 4458.
Sheps, M.C. & Perrin, E.B. (1964) The distribution of birth intervals under a class of stochastic fertility models. Popul. Stud. 17, 321.
Tietze, C. (1963) The effect of breastfeeding on the rate of conception. Proceedings of International Population Conference,New York, Vol. II, p. 129.
Watts, G.F., Diddle, A.W., Gardner, W.H. & Williamson, P.J. (1964) Pregnancy following withdrawal from oral contraceptive measures. Am. J. Obstet. Gynec. 90, 401.
Weinberg, W. (1902) Beiträge zur Physiologie und Pathologie der Mehrlingsgeburten beim Menschen. Pflügers Arch. ges. Physiol. 88, 339.
White, C. & Wyshak, G. (1964) Inheritance in human dizygotic twinning. New Engl. J. Med. 271, 1003.
Wyshak, G. & White, C. (1965) Number of sibs preceding the birth of twins and the number born after the birth of twins. Ann. hum. Genet. 28, 357.

Intervals between births in families containing one set of twins

  • Grace Wyshak (a1)

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