PMID: 8611875Apr 6, 1996Paper

Twin births to mothers who are twins: a registry based study

BMJ : British Medical Journal
P LichtensteinA J Källén

Abstract

To estimate the risk of having twin infants for mothers who are twins; to investigate the genetic influence on twinning. Retrospective study of multiple births in two nationwide registries. Sweden. Multiple births among 31,586 deliveries between 1973 and 1991 to women who were twins. Numbers of monozygotic and dizygotic twin births expected and estimated. Women who are dizygotic twins have a moderately increased risk of having twins (relative risk 1.30, 95% confidence interval 1.14 to 1.49) which seems to be completely the result of dizygotic twinning. When a mother is a monozygotic twin, her risk of having twins of the same sex is significantly increased (1.47; 1.10 to 1.97). This is the result of an excess of monozygotic twins (39 pairs estimated, 18 expected). Women who are twins have an increased risk of giving birth to twins. Genetic components of monozygotic and dizygotic twinning seem to be independent.

References

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Citations

Mar 13, 2010·Cancer Causes & Control : CCC·Sarah NechutaEllen M Velie
Apr 3, 1998·Lancet·R Levy
Aug 13, 2004·Journal of Affective Disorders·Ulla KläningPreben Bo Mortensen
May 7, 1998·Early Human Development·H Rydhstroem
Feb 26, 2013·Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies·Elizabeth M C Van der StroomCornelis B Lambalk
Nov 7, 2000·The Australian & New Zealand Journal of Obstetrics & Gynaecology·G WestonD L Healy
Nov 16, 2005·Journal of Epidemiology and Community Health·Ruby H N Nguyen, Allen J Wilcox
Oct 8, 2011·PloS One·Jeroen Smits, Christiaan Monden
Mar 2, 2005·Obstetrics and Gynecology·Uma M ReddyMark A Klebanoff
Dec 14, 2002·British Journal of Plastic Surgery·K LawsonR Ng
Nov 16, 2013·Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies·Nancy L Segal
Jun 10, 2003·American Journal of Medical Genetics. Part a·Fiona BamforthDavid Huntsman
Sep 22, 1998·Clinical Obstetrics and Gynecology·S A Gall
Sep 27, 2006·Human Reproduction·R M FerrariG M Buck Louis
Jun 12, 2003·The Medical Journal of Australia·Mark P Umstad, Michael J Gronow

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