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A Study of the Influence of Ovulation Stimulants and Oral Contraception on Twin Births in England

Published online by Cambridge University Press:  01 August 2014

F. Webster  and
J.M. Elwood
F. Webster
Affiliation:
Department of Community Health, University of Nottingham, Queen's Medical Centre, Nottingham
J.M. Elwood*
Affiliation:
Department of Community Health, University of Nottingham, Queen's Medical Centre, Nottingham
*
Department of Community Health, Queen's Medical Centre, Clifton Blvd. Nottingham NG5 2UH, UK

Abstract

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A study of 111 mothers of twins in Nottinghamshire, England, in 1981-82 showed that at least 12 had used ovulation stimulants, compared to 2 of 102 mothers of singletons. Thus, the use of ovulation stimulants increased the twinning rate of this population by about 10 percent; this may explain the recently noted levelling off in the secular decline in twinning rates. In contrast to a recent study in France, no association between twinning and prior use of oral contraceptives was seen.

Keywords

Twinning ratesOvulation stimulantsOral contraceptives
Type
Short Note
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 34 , Issue 1-2 , April 1985 , pp. 105 - 108
Copyright
Copyright © The International Society for Twin Studies 1985

References

REFERENCES

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2. Hémon, D, Berger, C, Lazar, P (1981): Some observations concerning the decline of dizygotic twinning rate in France between 1901 and 1968 In Gedda, L, Parisi, P, Nance, WE (eds): Part A, Twin Biology and Multiple Pregnancy. New York: Alan R Liss, p 49–56.Google Scholar
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