A mother's age at birth,and particularly the mean or "average" age when a mother has her first child, is of interest to researchers and the public. Mean age can affect the total number of births a mother has over a lifetime, and which in turn impacts the composition and growth of the U.
S. population. Age of mother is associated with a range of birth outcomes,such as multiple births and birth defects. An earlier report presented trends in mean age from 1970 to 2000 (1). This report updates the earlier report and presents trends in the mean age at first and higher birth orders by race and Hispanic origin of mother and by state from 2000 to 2014 (1).
Source: cdc.gov