Reflects patient and
treatment characteristics of ART cycles performed in 2001 using fresh nondonor eggs or embryos.
b
When fewer than 20 cycles
are reported in an age category, rates are shown as a fraction and
confidence intervals are not given. Calculating percentages from fractions
may be misleading and is not encouraged.
c
A multiple-infant birth is
counted as one live-birth.
d
Clinic-specific outcome
rates are unreliable for women older than 42 undergoing ART cycles using
fresh or frozen embryos with nondonor eggs. Readers are urged to review
national outcomes for these age groups.
See
Figure 11.
e
All ages (including
ages>42) are reported together because previous data show that patient
age does not materially affect success with donor eggs.
Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A
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