(Vox) – For many years, the effectiveness of the procedure was a bit of a black box: Not enough people had tried to use their frozen eggs for scientists to pull together reliable data. Now, however, a picture is emerging.

In one groundbreaking 2022 study conducted at NYU Langone Fertility Center and looking at 543 patients over 15 years, the chance of a live birth from frozen eggs was 39 percent. “There isn’t a guarantee of having a baby from egg freezing,” says Sarah Druckenmiller Cascante, a reproductive endocrinologist at NYU Langone Fertility Center and one of the study’s authors. The study made a splash because it provided numbers where little comprehensive national data exists, though experts at other clinics tell Vox that its results are in line with what they’ve found.

And far from ushering in a new era of gender equality, some experts say, the procedure serves as another way for companies to make money from stoking women’s anxieties. (Read More)