Table 11.7Comparison of live birth rates per cycle started by age and number of previous unsuccessful treatment cycles based on fresh (not frozen) embryo transfer and excluding donor eggs, 1995 to 2001 (Source: Oxford Fertility Unit)

a) Women aged less than 39 years
Previous treatment cycles (n)Treatment cycles (n)Live births (n)Live birth rate per treatment cycle (%)
0239657524.0
1128031024.2
263113821.9
b) Women aged 39 years and over
Previous treatment cycles (n)Treatment cycles (n)Live births (n)Live birth rate per treatment cycle (%)
03343410.2
1228229.7
21592616.4a
a

The live birth rate for women aged 39 years and over with two previous unsuccessful cycles is less reliable than the other rates because it is based on fewer cycles.

The live birth rate for women aged 39 years and over with two previous unsuccessful cycles is less reliable than the other rates because it is based on fewer cycles.

From: 11, Factors affecting the outcome of in vitro fertilisation treatment

Cover of Fertility
Fertility: Assessment and Treatment for People with Fertility Problems.
NICE Clinical Guidelines, No. 11.
National Collaborating Centre for Women's and Children's Health (UK).
London (UK): RCOG Press; 2004 Feb.
Copyright © 2004, National Collaborating Centre for Women’s and Children’s Health.

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