CARTR Annual report – 2009

Assisted reproductive technologies (ART) in Canada: 2009 results from the Canadian ART Register

Joanne Gunby, M.Sc.
CARTR Co-ordinator

Abstract

All 28 Canadian assisted reproductive technology (ART) clinics participated in the Canadian ART Register (CARTR) for 2009. A total of 16,315 cycles was reported to CARTR, resulting in 5621 clinical pregnancies and at least 4448 deliveries, 4412 live births, 3208 singleton live births, 2454 healthy term singletons, 1217 multiple births (including 43 high-order multiple births), and 5710 infants, 43% of whom were from multiple gestations. Birth outcomes were unknown for 141 ongoing pregnancies (3.1%).

In 10,532 IVF/ICSI cycles using the woman’s own oocytes, per cycle started, the clinical pregnancy rate was 37.6% (43.3% per embryo transfer), the live birth rate was 30.2%, the singleton live birth rate was 21.5%, and the healthy term singleton rate was 16.4%; the multiple birth rate per delivery was 28.7%, with a high-order multiple birth rate of 1.0%. ICSI was performed in 72% of cycles. One or two embryos were transferred in 71% of cycles. In 486 IVF/ICSI cycles using donor oocytes, per cycle started, the clinical pregnancy rate was 49.6%, the live birth rate was 41.5%, the singleton live birth rate was 28.0%, and the healthy term singleton rate was 18.5%; the multiple birth rate was 32.8%, with a high-order multiple birth rate of 1.5%. In 4223 FET cycles using the woman’s own oocytes, per cycle started, the clinical pregnancy rate was 26.4%, the live birth rate was 19.8%, the singleton live birth rate was 15.6%, and the healthy term singleton rate was 12.4%; the multiple birth rate was 20.9%, with a high-order multiple birth rate of 0.7%.

Clinical pregnancy and live birth rates and number of ART cycles performed continued to increase in 2009 compared with previous years. In IVF/ICSI and FET cycles, multiple birth rates were similar to those in 2008 and the high-order multiple birth rates remained at 1% or less.

Full article is available: CARTR 2009