From the BioNews article about the study:
"Lead author Louise Stewart, researcher at the School of Population Health, stated: 'The results of this study suggest that IVF has the potential to be more effective if women, especially those over 35, are able to undertake more than the usual two to three cycles'."
(She's referring to the number of cycles recommended in the U.K. by their National Institute for Health and Clinical Excellence guidelines.)
Another interesting result of the study, which retrospectively analyzed Western Australia's IVF success rates from 1993 to 2002, is the number of women who went on to get pregnant without IVF and have a child after stopping IVF treatment -- 21% of 20-somethings and 11% in their early 40's.
Asked by Reuters to comment, University of California's Dr. Mitchell Rosen is quoted as saying that the study results are "pretty obvious" and points out that even so, success odds decrease with each cycle over time. He adds that eventually, "the psychological side effects and the cost" will stand in the way of continuing IVF for some patients.
Sonja Kristiansen, Medical Director of Houston Fertility Center, adds, "Studies like this are helpful in demonstrating the illusive nature of IVF rates for both success and risks. It's important to educate patients about the tremendous gray areas of medicine, even with full access to the highest state-of-the-art technology and facilities. Much of practicing medicine is dependent on the art of communication with patients."
Dr. Kristiansen believes that new fertility patients can be educated about the risks and chances for success of IVF so that their expectations about fertility treatment outcomes are based on the realities of reproductive medicine. "With reasonable expectations for fertility treatment, patients will feel more secure about choosing among available options to help them get pregnant successfully."