Success rates may be misleading if they are based on a small number. We omit graphed data if there are less than 20 transfers in a segment. You can find these outcomes expressed as a fraction in the table following the graphed data. The bottom of the fraction indicates the number of transfers and the top shows the number of live births.
Optimal Outcome measures the percentage of transfers resulting in a healthy weight, singleton born to term. Research shows that multiple birth pregnancies can cost nearly 20 times more than singleton pregnancies.
|Thawed Embryos||< 35||36-37||38-40||41-42||Donor|
|Live Birth Rate||50.5||52.9||46.0||44.3||42.1|
|Average Embryos Transferred||1.6||1.6||1.5||1.5||1.6|
|Number of Transfers||882||346||211||79||164|
|Fresh Embryos||< 35||36-37||38-40||41-42||Donor|
|Live Birth Rate||54.7||30.0||4 / 19||2 / 13||50.0|
|Optimal Outcome||37.9||23.3||3 / 19||1 / 13||30.0|
|Average Embryos Transferred||1.5||1.7||1.8||2.0||1.7|
|Number of Transfers||95||30||19||13||20|
|Banked Embryos / Oocytes||< 35||36-37||38-40||41-42||Donor|
|Number of Cycles||453||229||205||97||N/A|
Based on 2016 data as reported to the CDC. This data has not been verified. A message from the CDC, "A Comparison of clinic success rates may not be meaningful because patient medical characteristics and treatment approaches vary from clinic to clinic."
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