Explanation of Figures, Section 2: ART Cycles Using Fresh, Nondonor Eggs or Embryos

This page contains figures 14–24 of Section 2B 
Click on titles or images to go back to Section 2B

What are the causes of infertility among couples who use ART? Figure 14

Figure 14 is a pie chart representing diagnoses among couples who had ART cycles using fresh nondonor eggs or embryos, 2002.

• Tubal factor, 13.6%
• Ovulatory dysfunction, 6.0%
• Diminished ovarian reserve, 5.7%
• Endometriosis, 6.7%
• Uterine factor, 1.4%
• Male factor, 18.8%
• Other causes, 5.6%
• Unexplained cause, 11.1%
• Multiple factors, female only, 12.7%
• Multiple factors, female + male, 18.5%

Does the cause of infertility affect the chances of success using ART? Figure 15

Figure 15 is a bar graph representing live birth rates among women who had ART cycles using fresh nondonor eggs or embryos, by diagnosis, 2002.

• Tubal factor, 30.5% of live births per cycle
• Ovulatory dysfunction, 33.1% of live births per cycle
• Diminished ovarian reserve, 13.9% of live births per cycle
• Endometriosis, 32.4% of live births per cycle
• Uterine factor, 22.9% of live births per cycle
• Male factor, 33.6% of live births per cycle
• Other causes, 25.7% of live births per cycle
• Unexplained cause, 30.0% of live births per cycle
• Multiple factors - female only, 23.4% of live births per cycle
• Multiple factors - female + male, 26.4%

How many women who use ART have previously given birth? Figure 16

Figure 16 is a pie chart representing the number of previous births among women who had ART cycles using fresh nondonor eggs or embryos, 2002.

• None, 73.0%
• One, 19.5%
• Two, 4.5%
• Three or more, 2.5%
• Unknown, 0.5%

Do women who have previously given birth have higher ART success rates? Figure 17

Figure 17 is a bar graph representing live birth rates for ART cycles using fresh nondonor eggs or embryos, by woman’s age and number of previous live births, 2002.

• <Age 35, no previous live births 35.7%, 1 or more previous live births 42.0%
• Age 35–37, no previous live births 29.2%, 1 or more previous live births 34.0%
• Age 38–40, no previous live births 19.3 %, 1 or more previous live births 23.0%
• Age 41–42, no previous live births 10.3%, 1 or more previous live births 11.5%
• >Age 42, no previous live births 4.1%, 1 or more previous live births 4.7%

Is there a difference in ART success rates between women with previous miscarriages and women who have never been pregnant? Figure 18

Figure 18 is a bar graph representing live birth rates for ART cycles using fresh nondonor eggs or embryos, by woman’s age and history of miscarriage, among women with no previous births, 2002. (Note: Women reporting only previous ectopic pregnancies or pregnancies that ended in induced abortion were not included in these statistics.)

• <Age 35, no previous pregnancies 35.6%, 1 or more previous miscarriages 35.9%
• Age 35–37, no previous pregnancies 28.8%, 1 or more previous miscarriages 29.3%
• Age 38–40, no previous pregnancies 18.8%, 1 or more previous miscarriages 20.3%
• Age 41–42, no previous pregnancies 9.8%, 1 or more previous miscarriages 10.7%
• >Age 42, no previous pregnancies 4.2%, 1 or more previous miscarriages 3.9%

How many current ART users have undergone previous ART cycles? Figure 19

Figure 19 is a pie chart representing the number of previous ART cycles among women undergoing ART in 2002 with fresh nondonor eggs or embryos.

• Zero, 55.5%
• One, 20.8%
• Two, 11.3%
• Three, 5.7%
• Four or more, 6.7%
   

Are success rates different for women using ART for the first time and women who previously used ART but did not give birth? Figure 20

Figure 20 is a bar graph representing live birth rates for ART cycles using fresh nondonor eggs or embryos, by woman’s age and history of previous ART cycles, among women with no previous births, 2002.

• <Age 35, no previous ART cycles and no previous births 37.8%, 1 or more previous ART cycles and no previous births 31.7%
• Age 35–37, no previous ART cycles and no previous births 31.4%, 1 or more previous ART cycles and no previous births 26.2%
• Age 38–40, no previous ART cycles and no previous births 20.6%, 1 or more previous ART cycles and no previous births 17.9%
• Age 41–42, no previous ART cycles and no previous births 10.7%, 1 or more previous ART cycles and no previous births 10.0%
• >Age 42, no previous ART cycles and no previous births 3.8%, 1 or more previous ART cycles and no previous births 4.3%

What are the success rates for women who have had both previous ART and previous births? Figure 21

Figure 21 is a bar graph representing live births rates for ART cycles using fresh nondonor eggs or embryos, by woman’s age and history of previous ART cycles, among women with one or more previous births, 2002.

• <Age 35, no previous ART cycles and 1 or more previous births 42.5%, 1 or more previous ART cycles and 1 or more previous births 41.5%
• Age 35–37, no previous ART cycles and 1 or more previous births 33.4%, 1 or more previous ART cycles and 1 or more previous births 34.4%
• Age 38–40, no previous ART cycles and 1 or more previous births 23.1%, 1 or more previous ART cycles and 1 or more previous births 23.0%
• Age 41–42, no previous ART cycles and 1 or more previous births 10.4%, 1 or more previous ART cycles and 1 or more previous births 12.3%
• >Age 42, no previous ART cycles and 1 or more previous births 4.0%, 1 or more previous ART cycles and 1 or more previous births 5.2%
   

How many embryos are transferred in an ART procedure? Figure 22

Figure 22 is a pie chart representing the number of embryos transferred during ART cycles using fresh nondonor eggs or embryos, 2002.

• One, 6.7%
• Two, 31.6%
• Three, 33.6%
• Four, 18.0%
• Five, 6.5%
• Six, 2.4%
• Seven or more, 1.2%

In general, is an ART cycle more likely to be successful if more embryos are transferred? Figure 23

Figure 23 is a bar graph representing the percentage of live births per transfer and the percentages of multiple-infant births for ART cycles using fresh nondonor eggs or embryos, by number of embryos transferred, 2002. (Note: In rare cases a single embryo may divide and thus produce twins. For this reason a small percentage of twins resulted from a single embryo transfer and a small percentage of triplets resulted when two embryos were transferred.)

• 1 Embryo transferred, Live births per transfer 12.8%. Of these live births, 98.0% were singletons and 2.0% were twins.
• 2 Embryos transferred, Live births per transfer 39.5%. Of these live births, 66.7% were singletons, 32.6% were twins and 0.7% were triplets or more.
• 3 Embryos transferred, Live births per transfer 37.7%. Of these live births, 61.7% were singletons, 32.6% were twins and 5.7% were triplets or more.
• 4 Embryos transferred, Live births per transfer 32.8%. Of these live births, 62.3% were singletons, 32.1% were twins and 5.6% were triplets or more.
• 5 or more Embryos transferred, Live births per transfer 28.9%. Of these live births, 63.2% were singletons, 31.3% were twins and 5.6% were triplets or more.

Are live birth rates affected by the number of embryos transferred for women who have more embryos available than they choose to transfer? Figure 24

Figure 24 is a bar graph representing live births per transfer and percentages of multiple-infant births for ART cycles in women who were younger than 35, used fresh nondonor eggs or embryos, and set aside extra embryos for future use, by number of embryos transferred, 2002. (Note: In rare cases, a single embryo may divide and thus produce twins. For this reason, a small percentage of twins resulted from a single embryo and a small percentage of triplets resulted when two embryos were transferred.)

• 1 Embryo transferred, Live births per transfer 47.4%. Of these live births, 100% were singletons, 0.0% were twins.
• 2 Embryos transferred, Live births per transfer 51.8%. Of these live births, 60.4% were singletons, 38.8% were twins and 0.9% were triplets or more
• 3 Embryos transferred, Live births per transfer 49.6%. Of these live births, 52.8% were singletons, 39.1% were twins and 8.1% were triplets or more.
• 4 Embryos transferred, Live births per transfer 45.5%. Of these live births, 49.7% were singletons, 40.3% were twins and 10.0% were triplets or more.
• 5 or more Embryos transferred, Live births per transfer 45.7%. Of these live births, 51.1% were singletons, 40.2% were twins and 8.8% were triplets or more.