Factors influencing twins and zygosity

Gary V.D. Hankins; George R. Saade

doi:10.1111/j.1365-3016.2005.00609.x

Factors influencing twins and zygosity

Gary V.D. Hankins
, George R. Saade

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Zygosity is influenced by many factors. Monozygotic twins occur spontaneously in approximately 1 in 250 births and are felt to increase twofold with ovulation induction techniques. Monozygotic twinning also increases in proportion to the number of blastocysts transferred during in vitro fertilisation. In contrast, dizygotic twinning appears to be influenced by race, genetic factors, maternal age, fertility enhancing drugs, folic acid supplementation, and maternal nutritional status.

Original language	English (US)
Pages (from-to)	8-9
Number of pages	2
Journal	Paediatric and Perinatal Epidemiology
Volume	19
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1111/j.1365-3016.2005.00609.x
State	Published - Jan 2005
Externally published	Yes

ASJC Scopus subject areas

Epidemiology
Pediatrics, Perinatology, and Child Health

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10.1111/j.1365-3016.2005.00609.x

Cite this

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Factors influencing twins and zygosity

Abstract

ASJC Scopus subject areas

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