Elsevier

Fertility and Sterility

Volume 95, Issue 2, February 2011, Pages 542-547.e10
Fertility and Sterility

In vitro fertilization
Assisted reproductive technologies (ART) in Canada: 2007 results from the Canadian ART Register

https://doi.org/10.1016/j.fertnstert.2010.05.057Get rights and content
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Objective

To present a report on assisted reproductive technologies (ART) cycles performed in 2007 in Canada and show trends in outcomes over time. This is the seventh annual report from the Canadian ART Register (CARTR).

Design

Prospective cohort study.

Setting

Twenty-six of 26 ART centers in Canada.

Patient(s)

Couples undergoing ART treatment in Canada during 2007.

Intervention(s)

ART treatments, including in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), and frozen embryo transfer (FET).

Main Outcome Measure(s)

Clinical pregnancy, live-birth, and multiple-birth rates.

Result(s)

A total of 13,482 ART cycles was reported to CARTR. In 8,972 IVF/ICSI cycles using the woman's own oocytes, per cycle started, the clinical pregnancy rate was 35.6% (41.0% per ET), and the live-birth rate was 28.6%; the multiple-birth rate per delivery was 30.2%, with a high-order multiple-birth rate of 1.1%. In 68% of cycles ICSI was performed. One or two embryos were transferred in 69% of cycles. In 404 IVF/ICSI cycles using donor oocytes, the clinical pregnancy rate was 44.6%, and the live-birth rate was 36.1%; the multiple-birth rate was 26.5%, with no triplet birth. In 3,224 FET cycles using the woman's own oocytes, the clinical pregnancy rate was 23.7%, and the live-birth rate was 17.8%; the multiple-birth rate was 24.1%, with a triplet birth rate of 0.2%. Birth outcomes were unknown for 2.0% of ongoing pregnancies.

Conclusion(s)

For 2007, CARTR achieved 100% voluntary participation from Canadian ART centers for the fifth consecutive year. Clinical pregnancy and live-birth rates continued to increase in 2007 compared with previous years, with a decrease in high-order multiple births.

Key Words

Assisted reproductive technologies
frozen embryo transfer
in vitro fertilization
intracytoplasmic sperm injection
multiple births
oocyte donation
pregnancy rates

Cited by (0)

J.G. has nothing to disclose. F.B. has nothing to disclose. C.L. has nothing to disclose. L.C. has nothing to disclose.

Supported by the IVF Directors Group of the Canadian Fertility and Andrology Society, Montreal, Quebec, Canada.

This is an abridged report. The full report is available online as Supplementary material.