NOEL LEONG FERTILITY & IVF CLINIC

What are our pregnancy rates?

First we need to define and understand the various pregnancy rates published in Assisted Reproductive Technologies (ART) data statistics.

A clinical pregnancy is any pregnancy except that diagnosed only by measuring levels of human chorionic gonadotropin. It includes viable pregnancies of at least 20 weeks, miscarriages and ectopic pregnancies.

A viable pregnancy is one that reaches at least 20 weeks gestation and includes live births as well as stillbirths.

A live birth is the birth of an infant with signs of life after pregnancy of at least 20 weeks gestation.

Most data on ART pregnancies use three different stages of the treatment cycle to show the pregnancy rates. They are therefore, reported as pregnancies per treatment started, pregnancies per egg collection and pregnancies per embryo transfers.

Our pregnancy rates

Our data covers the period beginning 1 October 2001 to 30 September 2003 and includes women of all ages.

For Fresh Cycles ICSI/IVF combined, our Clinical Pregnancy per Embryo Transfer rate was 37.5%.

For Fresh Cycles ICSI/IVF combined, both our Viable Pregnancy and Live Birth per Embryo Transfer rates were 29.5%.

For Frozen Cycles ICSI/IVF combined, our Clinical Pregnancy per Embryo Transfer rate was 26.7%.

For Frozen Cycles ICSI/IVF combined, both our Viable Pregnancy and Live Birth per Embryo Transfer rates were 15%.

For Superovulation and Intrauterine Insemination, our Clinical Pregnancy per Intrauterine insemination rate was 22.4%.

For Superovulation and Intrauterine Insemination, our Live Birth per intrauterine insemination rate was 19.4%.

Where do we stand?

According to the data in Assisted conception Australia and New Zealand 2000 and 2001 publication, the average pregnancy rates for the year 2001 were …….

For Fresh Cycles IVF, the Clinical & Viable Pregnancies per 100 embryo transfers were 30.1% and 24.3% respectively.

For Fresh Cycles ICSI, the Clinical & Viable Pregnancies per 100 embryo transfers were 29.3% & 23.9% respectively.

For Frozen Cycles IVF, the Clinical & Viable Pregnancies per 100 embryo transfers were 19.8% & 15.5% respectively.

For Frozen Cycles ICSI, the Clinical & Viable Pregnancies per 100 embryo transfers were 17.8% and 14.7% respectively.

According to the data from Human Fertilisation & Embryology Authority, the National average Live Birth per embryo transfer rates for UK for the period 1 April 2000 to 31 March 2001 were 25.4% for Fresh Cycles and 14.7% for Frozen Cycles.