does in vitro increase the risk of having a preterm birth

Most medical professionals

Most medical professionals agree that there is a link.

“Even when IVF produces single babies, the effect [of low weight and prematurity] is still there,” says Dr. Keith Tanswell, Women’s Auxiliary Chair in Neonatology and senior scientist at Toronto’s SickKids hospital. “I think we’ve known for a number of years that all these increasing rates can be accounted for almost completely by IVF.”

Twins conceived by in vitro fertilization are about 1.5 times as likely to be born premature as twins conceived through sexual intercourse.


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