The Egg Factor

Breaking down SART outcomes

Center For Human Reproduction

Success rates are one of the most common ways fertility clinics are compared—but what do the numbers actually mean?

In this episode of The Egg Factor, CHR’s Medical Director Dr. Norbert Gleicher and Associate Medical Director Dr. David Barad break down the latest SART (Society for Assisted Reproductive Technology) outcome data.

Together, they unpack:

  • How SART collects and reports IVF outcomes across U.S. clinics
  • Why success rates can be misleading—especially for patients over 40 or those with diminished ovarian reserve
  • The unintended consequences of “competing by numbers,” including why some clinics turn away challenging cases to keep their stats high
  • CHR’s unique approach, and why they accept patients other clinics often won’t

At CHR, we believe patients deserve more than statistics—they deserve honesty, context, and individualized care. Tune in as Dr. Gleicher and Dr. Barad explain how to read between the lines of success rate data, and what really matters when choosing a fertility clinic.

Brought to you by the Center for Human Reproduction (CHR) on the Upper East Side of New York City. With over 40 years of experience and a history of innovation, CHR has been at the forefront of fertility care since the beginning. 

Our founder, Dr. Norbert Gleicher, reported the first successful transvaginal egg retrieval in human history, helping to shape the future of IVF as we know it today. CHR is known for tackling some of the most challenging fertility cases—especially women over 40 and those with diminished ovarian reserve—by offering highly individualized, evidence-based care when others often turn patients away.

Our team has published more than 450 peer-reviewed research papers advancing reproductive medicine, reflecting our deep commitment not only to patient care but to the science that drives better outcomes. At CHR, you're never just a number. You're part of a community focused on giving you the personalized support, science, and hope you deserve.


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