Incidence of Twin Births in Denmark from 1911 to 1974
- 1 January 1978
- journal article
- research article
- Published by Cambridge University Press (CUP) in Acta geneticae medicae et gemellologiae
- Vol. 27, 45-49
- https://doi.org/10.1017/s0001566000009491
Abstract
A survey of twin births in Denmark in relation to the total number of births from 1911 to 1974 shows a significant decrease in the dizygotic twin birth rate for all maternal age groups. The possible environmental causes of such a decrease are discussed.Keywords
This publication has 4 references indexed in Scilit:
- Semen Analysis: Evidence for Changing Parameters of Male Fertility PotentialFertility and Sterility, 1974
- Retrospective Studies of the Twinning Rate in ScandinaviaActa geneticae medicae et gemellologiae, 1974
- Secular changes in dizygotic twinning ratesJournal of Biosocial Science, 1972
- The twinning rate in Europe and AfricaAnnals of Human Genetics, 1959