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Statistical Models for the Twinning Rate

Published online by Cambridge University Press:  01 August 2014

J.O. Fellman*
Affiliation:
Folkhälsan Institute of Genetics, Population Genetics Unit, Helsinki, Finland
A.W. Eriksson
Affiliation:
Institute of Human Genetics, Medical Faculty, Free University of Amsterdam, Netherlands
*
Swedish School of Economics and Business Administration, Arkadiagatan 22, 00100 Helsinki, Finland

Abstract

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Linear regression models are used to explain the variations in the twinning rates. Data sets from different countries are analysed and maternal age, parity and marital status are the main regressors. The model building technique is also used in order to study the secular decline in the twinning rate. Linear regression technique makes it possible to compare the effect of different factors but the method requires sufficiently disaggregated data.

Type
Research Article
Copyright
Copyright © The International Society for Twin Studies 1987

References

1.Doherty, JDH, Lancaster, PAL (1986): The secular trend of twinning in Australia, 1853-1982. Acta Genet Med Gemellol 35: 6176.CrossRefGoogle Scholar
2.Eriksson, AW (1973): Human twinning in and around the Åland Islands. Commentationes Biologicae 64: 1154.Google Scholar
3.Eriksson, AW, Fellman, J (1967): Twinning and legitimacy. Hereditas 57: 395402.CrossRefGoogle ScholarPubMed
4.Eriksson, AW, Fellman, J (1967): Twinning in relation to the marital status of the mother. Acta Genet Statist Med 17: 385398.Google Scholar
5.Eriksson, AW, Fellman, J (1973): Differences in the twinning trends between Finns and Swedes. Am J Hum Genet 25: 141151.Google ScholarPubMed
6.Fellman, J, Eriksson AW (1985): Factors affecting the birth prevalence of twins. Paper read at the Nordic Symposium on Biometrical Problems in Population Biology, Asker. Norway, Jan. 1415.Google Scholar
7.James, WH (1975): The secular decline in dizygotic twinning rates in Italy. Acta Genet Med Gemellol 24: 914.CrossRefGoogle ScholarPubMed
8.Kostense, PJ, Bressers, M, Tas, RFJ, Eriksson, AW (1986): Maternal age and parity as determinants of human twinning rate: An analysis of Dutch population data. Paper read at the Fifth International Congress on Twin Studies, Amsterdam 15-19 Sept. 1986.Google Scholar
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