NBC News writes: Nearly 10 percent of babies born in the U.S. are born prematurely and the rates of preterm birth are going up, a new government report shows. Also more low birth weight babies were born last year than in previous years, the Centers for Disease Control and Prevention reported. With half of all U.S. births covered by Medicaid, these rates would get even worse if Congress cuts back on the program, advocates said. Medicaid covers 75 million people, including nearly 36 million children, according to data released last week by the Centers for Medicare and Medicaid Service. Already the United States has much worse rates of infant mortality, preterm birth and low birth weight babies than other industrialized countries. The new data from the CDC’s National Center for Health Statistics (NCHS) shows no improvement.