Section 3: ART Cycles Using Frozen Nondonor Embryos

Figure 43 is a bar graph representing percentages of embryos transferred that resulted in implantation among women using frozen nondonor embryos, by age group, 2009.

• Age <35, 25.2%
• Age 35–37, 21.4%
• Age 38–40, 18.0%
• Age 41–42, 14.7%
• Age 43–44, 10.9%
• Age >44, 10.6%

Figure 44 is a bar graph representing percentages of transfers that resulted in live births and singleton live births for ART cycles using frozen nondonor embryos and ART cycles using fresh nondonor embryos, 2009.            

• Frozen embryos is subdivided into the following three categories:
  • Thawed embryos resulting in live births, 30.3%
  • Transfers resulting in live births, 30.8%
  • Transfers resulting in singleton live births, 23.6%
• Fresh embryos is subdivided into the following two categories:
  • Transfers resulting in live births, 36.6%
  • Transfers resulting in singleton live births, 25.5%

Figure 45 depicts two pie charts, A and B, representing risks of having multiple-fetus pregnancies and multiple-infant live births from ART cycles using frozen nondonor embryos, 2009.

• Pie chart A represents 9,487 pregnancies.
• Singletons: 67.3%
• Total multiple-fetus pregnancies 22.8%, which is subdivided as follows:
• Twins: 20.9%
• Triplets or more: 1.9%
• Not able to determine number of fetuses: 9.8%

Note: Total does not equal 100% due to rounding.

• Pie chart B represents 7,424 live births.
• Singletons: 76.6%
• Total multiple-infant live births 23.4%, which is subdivided as follows:
• Twins: 22.3%
• Triplets or more: 1.1%