Number of test-tube babies born in U.S. hits record percentage

More test-tube babies were born in the United States in 2012 than ever before, and they constituted a higher percentage of total births than at any time since the technology was introduced in the 1980s, according to a report released on Monday. The annual report was from the Society for Assisted Reproductive Technology (SART), an organization of medical professionals. SART’s 379 member clinics, which represent more than 90 percent of the infertility clinics in the country, reported that in 2012 they performed 165,172 procedures involving in vitro fertilization (IVF), in which an egg from the mother-to-be or a donor is fertilized in a lab dish. That was about 2,000 more IVF babies than in 2011.