The first five years of the Budapest twin register, 1970-1974

E. Czeizel, I. Pazonyi, J. Métneki, M. Tomka

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The Budapest Twin Register recorded 88.6% of the 1739 multiple births that occurred between 1970 and 1974. Of these, 31.2% were male-female pairs. Based on the examination of the placenta (19.8% monochorial) and of genetic markers, 406 pairs proved to be monozygotic and 645 dizygotic. Sex ratio of twins at birth showed a female preponderance (1000 F: 1009 M) in comparison to singletons (1000 F:1071 M). Average birthweight of the twins was 2101 g. The frequency of stillbirths was about four times higher in twins than in singletons, twice as high in monozygotic than in dizygotic twins, and 2.4 times higher among second than first-born twins.

Original languageEnglish
Pages (from-to)73-76
Number of pages4
JournalActa Geneticae Medicae et Gemellologiae
Volume28
Issue number1
Publication statusPublished - 1979

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Multiple Birth Offspring
Dizygotic Twins
Stillbirth
Sex Ratio
Genetic Markers
Placenta
Parturition

ASJC Scopus subject areas

  • Genetics(clinical)

Cite this

The first five years of the Budapest twin register, 1970-1974. / Czeizel, E.; Pazonyi, I.; Métneki, J.; Tomka, M.

In: Acta Geneticae Medicae et Gemellologiae, Vol. 28, No. 1, 1979, p. 73-76.

Research output: Contribution to journalArticle

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