A new NCHS report presents 2013 final birth data on several key demographic and maternal and infant health indicators. Trends in the number of births, general fertility rates, age-specific birth rates, and cesarean delivery rates by race and Hispanic origin, as well as trends in preterm births by state and trends in twin births are explored, with special focus on the most current period, 2012–2013. A previous report presented 2013 preliminary data on selected topics. Data are from the annual national natality files, representing 100% of births to U.S. residents.
Key Findings from the Report:
- There were 3.93 million births in the United States in 2013, down less than 1% from 2012 and 9% from the 2007 high. The U.S. general fertility rate was at an all-time low in 2013.
- Birth rates dropped to record lows in 2013 among women under age 30 and rose for most age groups 30 and over.
- The cesarean delivery rate declined 1% from 2012 to 2013, to 32.7% of births. This rate rose nearly 60% from 1996 to 2009, but was down slightly from the 2009 high.
- The 2013 preterm birth rate was 11.39%, down 1% from 2012 and 11% from the 2006 peak. Declines in preterm rates since 2006 were reported across the United States.
- The twin birth rate, which had been mostly stable for 2009–2012, rose 2% in 2013 to 33.7 per 1,000 births.