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Section 2: ART Cycles Using Fresh, Nondonor Eggs or Embryos (Part C)

Explanation of Figures 26–34. Click on titles or images to go back to Section 2 Part C.

Figure 26 is a bar graph representing percentages of transfers that resulted in a good perinatal outcome using fresh nondonor eggs or embryos, by number of embryos transferred, 2011.

  • 1 embryo transferred: Percentage of transfers that resulted in a good perinatal outcome 24.2%
  • 2 embryos transferred: Percentage of transfers that resulted in a good perinatal outcome 23.3%
  • 3 embryos transferred: Percentage of transfers that resulted in a good perinatal outcome 17.4%
  • 4 or more embryos transferred: Percentage of transfers that resulted in a good perinatal outcome 14.6%

Figure 27 is a bar graph representing percentages of transfers that resulted in live births and percentages of multiple-infant live births for ART cycles using fresh nondonor eggs or embryos, by number of embryos transferred, 2011. Note: In rare cases a single embryo may divide and thus produce multiple-infant births. For this reason, small percentages of twins and triplets resulted from a single embryo transfer, and a small percentage of triplets or more resulted when two embryos were transferred. 

  • 1 embryo transferred: Percentage of transfers that resulted in live births 28.5%. Of these live births, 98.2% were singletons, 1.8% were twins, and <0.1% were triplets or more. Note: Total does not equal 100% due to rounding.
  • 2 embryos transferred: Percentage of transfers that resulted in live births 42.3%. Of these live births, 65.7% were singletons, 33.5% were twins, and 0.8% were triplets or more.
  • 3 embryos transferred: Percentage of transfers that resulted in live births 30.6%. Of these live births, 69.5% were singletons, 27.2% were twins, and 3.3% were triplets or more.
  • 4 or more embryos transferred: Percentage of transfers that resulted in live births 23.0%. Of these live births, 76.5% were singletons, 20.7% were twins, and 2.8% were triplets or more.

Figure 28 is a bar graph representing percentages of transfers that resulted in live births and percentages of multiple-infant live births for ART cycles among women who were younger than age 35, used fresh nondonor eggs or embryos, and set aside extra embryos for future use, by number of embryos transferred, 2011. Note: In rare cases, a single embryo may divide and thus produce multiple-infant births. For this reason, small percentages of twins and triplets resulted from a single embryo transfer, and a small percentage of triplets or more resulted when two embryos were transferred. 

  • 1 embryo transferred: Percentage of transfers that resulted in live births 48.7%. Of these live births, 98.4% were singletons and 1.6% were twins, and <0.1% were triplets or more. Note: Total does not equal 100% due to rounding.
  • 2 embryos transferred: Percentage of transfers that resulted in live births 55.6%. Of these live births, 58.3% were singletons, 40.6% were twins, and 1.1% were triplets or more. 
  • 3 embryos transferred: Percentage of transfers that resulted in live births 47.7%. Of these live births, 58.4% were singletons, 34.4% were twins, and 7.2% were triplets or more.
  • 4 or more embryos transferred: Percentage of transfers that resulted in live births 42.4%. Of these live births, 58.3% were singletons and 41.7% were twins.

Figure 29 is a pie chart representing the day of embryo transfer among ART cycles using fresh nondonor eggs or embryos, 2011. Note: Day of embryo transfer is defined as the number of days following egg retrieval. Cycles using GIFT or ZIFT are excluded. Missing or implausible values for day of embryo transfer (i.e., 0 or >6) are not included. .

  • Day 1, 0.1%
  • Day 2, 5.1%
  • Day 3, 49.6%
  • Day 4, 2.3%
  • Day 5, 40.1%
  • Day 6, 2.8%

Figure 30 is a bar graph representing percentages of day 3 and day 5 embryo transfers using fresh nondonor eggs or embryos that resulted in live births, by age group, 2011. Note: Cycles using GIFT or ZIFT are excluded. Embryo transfers performed on days 1, 2, 4, and 6 are not included because each of these accounted for a small proportion of procedures. 

  • Age <35, Day 3, 39.7%, Day 5, 52.2%
  • Age 35–37, Day 3, 33.9%, Day 5, 45.6%
  • Age 38–40, Day 3, 24.3%, Day 5, 35.0%
  • Age 41–42, Day 3, 14.4%, Day 5, 25.0%
  • Age 43–44, Day 3, 6.3%, Day 5, 14.3%
  • Age >44, Day 3, 2.1%, Day 5, 3.2%

Figure 31 depicts two pie charts representing the numbers of embryos transferred among ART cycles using fresh nondonor eggs or embryos for day 3 and day 5 embryo transfers, 2011. Note: Cycles using GIFT or ZIFT are excluded. Embryo transfers performed on days 1, 2, 4, and 6 are not included because each of these accounted for a small proportion of procedures. 

  • Day 3:
    • 1 embryo transferred, 12.1%
    • 2 embryos transferred, 46.0%
    • 3 embryos transferred, 27.4%
    • 4 or more embryos transferred, 14.6%
    • Note: Total does not equal 100% due to rounding.
  • Day 5:
    • 1 embryo transferred, 20.0%
    • 2 embryos transferred, 65.6%
    • 3 embryos transferred, 11.7%
    • 4 or more embryos transferred, 2.7%

Figure 32 depicts two pie charts, A and B, representing distribution of multiple-infant live births among ART cycles using fresh nondonor eggs or embryos for day 3 and day 5 embryo transfers, 2011. Note: Cycles using GIFT or ZIFT are excluded. Embryo transfers performed on days 1, 2, 4, and 6 are not included because each of these accounted for a small proportion of procedures. 

  • Pie chart A represents 11,989 live births for day 3 embryo transfers.
    • Singletons: 75.0%
    • Total multiple-infant live births 24.9%, which is subdivided as follows:
      • Twins: 23.6%
      • Triplets or more: 1.3%
    • Note: Total does not equal 100% due to rounding.
  • Pie chart B represents 15,208 live births for day 5 embryo transfers.
    • Singletons: 67.9%
    • Total multiple-infant live births 32.1%, which is subdivided as follows:
      • Twins: 30.9%
      • Triplets or more: 1.2%

Figure 33 is a bar graph representing percentages of transfers that resulted in live births and percentages of multiple-infant live births for day 5 embryo transfers among women who were younger than age 35, used fresh nondonor eggs or embryos, and set aside extra embryos for future use, by number of embryos transferred, 2011. Note: Cycles using GIFT or ZIFT are excluded. In rare cases, a single embryo may divide and thus produce twins. For this reason, small percentage of twins resulted from a single embryo transfer, and a small percentage of triplets or more resulted when two embryos were transferred.

  • 1 embryo transferred: Percentage of transfers that resulted in live births 50.9%. Of these live births, 98.3% were singletons and 1.7% were twins.
  • 2 embryos transferred: Percentage of transfers that resulted in live births 59.1%. Of these live births, 54.2% were singletons, 44.5% were twins, and 1.3% were triplets or more.
  • 3 or more embryos transferred: Percentage of transfers that resulted in live births 47.7%. Of these live births, 57.9% were singletons, 33.8% were twins, and 8.3% were triplets or more.

Figure 34 is a bar graph representing a comparison of percentages of transfers using fresh nondonor eggs or embryos that resulted in live births between ART cycles that used gestational carriers and those that did not, by age group, 2011. Note: Age categories reflect the age of the ART patient, not the age of the gestational carrier. 

  • Age <35, Used a gestational carrier 54.8%, Did not use a gestational carrier 46.0%
  • Age 35–37, Used a gestational carrier 45.3%, Did not use a gestational carrier 38.3%
  • Age 38–40, Used a gestational carrier 35.8%, Did not use a gestational carrier 27.3%
  • Age 41-42, Used a gestational carrier 12.7%, Did not use a gestational carrier 16.5%
  • Age 43–44, Used a gestational carrier 7.1%, Did not use a gestational carrier 7.6%
  • Age >44, Used a gestational carrier 6.7%, Did not use a gestational carrier 2.0%
 


ART 2011 National Summary Presentation.
[PDF - 860KB]

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