Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-25T01:29:43.911Z Has data issue: false hasContentIssue false
  • English
  • Français

Über die geographische Verteilung von Zwillingsgeburten in Japan und in Deutschland

Published online by Cambridge University Press:  01 August 2014

S. Ihda
S. Ihda*
Affiliation:
Institut für Humangenetik der Universität Münster i. Westf., (Deutschland)

Summary

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The frequency of twin births in Japan was calculated with the aid of the births statistics of the Japanese government for 1955-1961, and compared with the corresponding data in Western Germany. The results are follows:

1. The frequency of twin births in Japan is 0.64% of all births, while in Germany it is of 1.15%. The ratio of MZ to DZ twins is 63%: 37% in Japan and 32%: 68% in Germany.

2. The present results are mainly in agreement with two previous reports by Komai (1936) and Inouye (1956).

3. The frequency of MZ twin births in Japan is almost the same as in Germany, while the frequency of DZ twin births in Germany is about three times higher than in Japan. This study confirms the hypothesis that the difference of the frequency of twin births between Japan and Germany is only due to the difference of the frequency of DZ twin births.

Type
Research Article
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 14 , Issue 4 , October 1965 , pp. 406 - 416
Copyright
Copyright © The International Society for Twin Studies 1965

References

Literatur

Bevölkerungsstatistik aus dem japanischen Gesundheitsministerium, 1955–1961. Tokio.Google Scholar
Gedda, L.: Studio dei Gemelli. Orizzonte Medico, Roma, 1951.Google Scholar
Inouye, E. et al.: Die Häufigkeit der Zwillingsgeburten in Japan, Studien über Zwillinge II, 1-8, Nihon-Gakujutsu-Shinko-Kai, Tokyo, 1956 (Japanisch).Google Scholar
Inouye, E. et al.: Frequency of multiple births in three cities of Japan, Am. J. Human Genet. 9, 317–320, 1957.Google Scholar
Inouye, E. et al.: Über die Zwillinge, Handbuch der Humangenetik von Prof. Furuhata et al., 55–68, Kanehara-Shuppan, Tokyo, 1960 (Japanisch).Google Scholar
Komai, T., Fukuoka, G.: Frequency of multiple births among the Japanese and related peoples. Am. J. Phys. Anthrop. 21, 433–447, 1936.Google Scholar
Statistisches Jahrbuch für Bundesrepublik Deutschland aus dem statistischen Bundesamt, 1955–1961. W. Kohlhammer, Stuttgart u. Mainz.Google Scholar
Verschuer, O. v.: Die Zwillingsforschung als Methode der Genetik vom Menschen, S.A.S. Nr. 13-19, 1–89, Bologna, 1949.Google Scholar
Verschuer, O. v.: Genetik des Menschen, Urban & Schwarzenberg, München und Berlin, 1959.Google Scholar
Vogel, F.: Lehrbuch der allgemeinen Humangenetik. Springer, Berlin-Gottingen-Heidelberg, 1961.Google Scholar