{Reference Type}: Journal Article
{Title}: Falling teen pregnancy, birthrates: what's behind the declines?
{Author}: Donovan P;
{Journal}: Guttmacher Rep Public Policy
{Volume}: 1
{Issue}: 5
{Year}: Oct 1998
暂无{Abstract}: About half of the almost 1 million US teenagers who become pregnant each year carry their pregnancies to term and give birth.  However, after years of steady increases, teen birthrates in the US are lower and pregnancy rates have fallen to their lowest level in 20 years.  Teenage sexual activity is also declining.  Over the period 1991-96, the birthrate in the US among teens declined from the 20-year high of 62.1 births/1000 females aged 15-19 to 54.4/1000.  This 12% decline comes after a 24% increase in the birthrate between 1986 and 1991.  Declines in the teen birthrate were observed for the nation overall, as well as in each state, ranging from 6% in Alabama to 29% in Alaska.  The teen birthrate among Blacks declined 21% to reach a record low of 91.4/1000 in 1996, while the rate for Hispanic teens barely changed during 1991-95, but eventually declined 5% during 1995-96 to 101.8/1000.  The birthrate among non-Hispanic White teens declined 9% during the period to 48.1/1000, while the birthrate for teens aged 15-17 fell 13% during the period and 9% for 18-19 year olds.  Pregnancy rates among women aged 15-19 years declined 14% between 1990 and 1995, to 101.1/1000, the lowest level since the mid-1970s.  Although researchers are unsure why teen pregnancy and birthrates have fallen, recent survey data suggest that the declines have occurred because both fewer teens are having sex and more sexually active adolescents are using contraception.