Age Affects ART Success

Published Online: Tuesday, March 1, 2005

Women over 42 may have trouble conceiving a child using assisted reproduction technologies (ART), according to a report from the Centers for Disease Control and Prevention (CDC). The CDC based its findings on data provided from 391 fertility clinics throughout the United States. In 2002, there were 115,392 attempts at conceiving a child using ART, up 7805 from 2001. A majority of the attempts were by invitro fertilization.

The analysis uncovered that 37% of assisted attempts in women under 35, using a woman's own egg and her partner's sperm, led to a live birth. The rates fell considerably in women older than 35. In women aged 38 to 41, the success rate dropped to 21%. For women aged 41 and 42, the rate fell to 11%. Women older than 42 had only a 4% success rate.

The report also stated that 28.3% of ART procedures resulted in multiple births for women who used their own fertilized eggs. Approximately 35% of all births using ART led to multiple births, compared with the 3% rate among the general population.

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