The national epidemic of multiple pregnancy and the contribution of assisted reproductive technology

Capsule:
Multiple pregnancy remains the most common complication of ART. The incidence of high-order multiple (HOM) pregnancies (triplets and greater) increased fivefold within 18 years and the total number peaked a decade ago. The incidence of twins and HOMs remains high but the proportion due to ART is much less than previously suspected, and the relative contribution of other factors greater.

Author:
Steven Ory, M.D.

Volume 100, Issue 4, Pages 929-930, October 2013

Abstract:
Multiple pregnancy remains the most common complication of ART. The incidence of high-order multiple (HOM) pregnancies (triplets and greater) increased fivefold within 18 years and the total number peaked a decade ago. The incidence of twins and HOMs remains high but the proportion due to ART is much less than previously suspected, and the relative contribution of other factors greater.

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