Explanation of Figures, Section 5: ART TRENDS, 1996–2002

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Is the use of ART increasing? Figure 40

Figure 40 is a line graph with three lines representing the number of ART cycles performed, the number of live-birth deliveries, and the number of live babies born using ART, by year from 1996 to 2001.

• 197,054 live-birth deliveries, 24,582 live babies born.
• 1998: 81,443 ART cycles,
• 96: 64,724 ART cycles, 14,388 live-birth deliveries, 20,659 live babies born.
• 1997: 72,426 ART cycles, 1
• 19,891 live-birth deliveries, 28,500 live babies born.
• 1999: 87,643 ART cycles, 21,501 live-birth deliveries, 30,285 live babies born.
• 2000: 99,639 ART cycles, 25,228 live-birth deliveries, 35,025 live babies born.
• 2001: 107,587 ART cycles, 29,344 live-birth deliveries, 40,687 live babies born.

Are live birth rates improving? Figure 41

Figure 41 is a bar graph representing the percentage of live births per transfer, by type of ART procedure, and by year for 1996, 2000 and 2001.

• 1996:  Fresh nondonor 28.0%, Frozen nondonor 16.7%, Fresh donor 38.9%, Frozen donor 20.8%
• 2000:  Fresh nondonor 31.6%, Frozen nondonor 20.3%, Fresh donor 43.4%, Frozen donor 23.5%
• 2001:  Fresh nondonor 33.4%, Frozen nondonor 23.4%, Fresh donor 47.0%, Frozen-donor 27.3%

Are singleton live birth rates improving? Figure 42

Figure 42 is a bar graph representing the percentage of singleton live births per transfer, by type of ART procedure, and by year for 1996, 2000, and 2001. 

• 1996:  Fresh nondonor 17.2%, Frozen nondonor 12.2%, Fresh donor 22.7%, Frozen donor 15.3%

• 2000:  Fresh nondonor 20.5%, Frozen nondonor 15.1%, Fresh donor 25.8%, Frozen donor 16.9%

• 2001:  Fresh nondonor 21.4%, Frozen nondonor 17.2%, Fresh donor 27.4%, Frozen-donor 16.9%

Are live birth rates improving for all ART patients or only for those in particular age groups? Figure 43

Figure 43 is a bar graph representing the percentage of live births per transfer for ART cycles using fresh, nondonor eggs or embryos, by woman’s age and by year for 1996, 2000 and 2001.

• 1996: Age <35, 33.6%; Age 35-37, 29.0%; Age 38-40, 21.6%; Age 41-42, 11.5%; Age >42, 5.4%
• 2000: Age <35, 38.4%; Age 35-37, 33.0%; Age 38-40, 24.3%; Age 41-42, 14.3%; Age >42, 6.0%
• 2001: Age <35, 41.1%; Age 35-37, 35.1%; Age 38-40, 25.4%; Age 41-42, 14.5%; Age >42, 6.7%
   

Are singleton live birth rates improving for all ART patients or only for those in particular age groups? Figure 44

Figure 44 is a bar graph representing the percentage of singleton live births per transfer for ART cycles using fresh, nondonor eggs or embryos, by woman’s age and by year for 1996, 2000 and 2001.

• 1996: Age <35, 19.3%; Age 35-37, 18.3%; Age 38-40, 15.4%; Age 41-42, 9.5%; Age >42, 4.6%
• 2000: Age <35, 23.6%; Age 35-37, 21.3%; Age 38-40, 17.7%; Age 41-42, 11.8 %; Age >42, 5.3%
• 2001: Age <35, 24.8%; Age 35-37, 22.9%; Age 38-40, 18.5%; Age 41-42, 11.9%; Age >42, 5.8%

Have multiple birth rates changed? Figure 45

Figure 45 is a bar graph representing the percentage of multiple births per live-birth delivery, by type of ART procedure, and by year for 1996, 2000, and 2001.

• 1996: Fresh nondonor 38.4%, Frozen nondonor 27.0%, Fresh donor 41.6%, Frozen donor 26.2%
• 2000: Fresh nondonor 35.3%, Frozen nondonor 25.8%, Fresh donor 40.6%, Frozen donor 29.1%
• 2001: Fresh nondonor 35.8%, Frozen nondonor 26.8%, Fresh donor 41.7%, Frozen-donor 28.4%

Have twin and triplet-or-more birth rates changed? Figure 46

Figure 46 is a bar graph representing the percentage of twin births per live-birth delivery and triplet-or-more births per live-birth delivery, for fresh–nondonor cycles, and by year for 1996, 2001 and 2002.

• 1996: Twins 31.4%, Triplets or more 7.0%
• 2001: Twins 32.0%, Triplets or more 3.8%
• 2002: Twins 31.6%, Triplets or more 3.8%