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The Twinning Incidence in Nigeria

Published online by Cambridge University Press:  01 August 2014

P.P.S. Nylander*
Affiliation:
Department of Obstetrics and Gynaecology, University College Hospital, Ibadan, Nigeria

Abstract

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The dizygotic twinning rate in Western Nigeria is the highest on record (45—50 per mil maternities). It is suggested that, rather than to peculiarities in the population structure or to genetic factors, such a high incidence might be due to the presence in the diet of estrogen-like substances.

Type
Session I: Incidence and Factors of Twinning
Copyright
Copyright © The International Society for Twin Studies 1979

References

REFERENCES

1. Hardman, N (1969): Pharmaceutical products from plant steroids. Trop Sci 11:196.Google Scholar
2. MacGillivray, I, Nylander, PPS, Corney, G (1975): “Human Multiple Pregnancy,” Philadelphia: W.B. Saunders.Google Scholar
3. Nylander, PPS (1969): The frequency of twinning in a rural community in Western Nigeria. Ann Hum Genet Lond 33:41.Google Scholar
4. Nylander, PPS (1971): Ethnic differences in the incidence of twinning in Ibadan. J Biosoc Sci 3:151.CrossRefGoogle Scholar
5. Nylander, PPS (1976): Biosocial and clinical studies in twinning in an African and a Caucasian population, M.D. Thesis, University of Aberdeen.Google Scholar
6. Nylander, PPS, Corney, G (1969): Placentation and zygosity of twins. Ann Hum Genet Lond 33:31.Google Scholar
7. Nylander, PPS (1978): Causes of high twinning frequencies in Nigeria. Prog Clin Biol Res 24, Part B: 35.Google Scholar
8. White, C, Wyshak, C (1964): Inheritance in human dizygotic twinning. N Engl J Med 27:1003.Google Scholar