According to the 2011 report card, three states and Puerto Rico received an F, 11 states and the District of Columbia earned a D, 19 states got a C, 16 states received a B and only Vermont earned an A. The United States received a “C” based on comparing the nation’s 2009 preliminary preterm birth rate of 12.2 percent with the March of Dimes new 2020 goal of 9.6 percent of all live births. The nation’s preterm birth rate has declined nearly 5 percent from the 2006 peak of 12.8 percent. The March of Dimes is the leading nonprofit organization for pregnancy and baby health. With chapters nationwide, the March of Dimes works to improve the health of babies by preventing birth defects, premature birth and infant mortality. For More Info Go To marchofdimes.com