Monitoring sexual activity and contraceptive use among U.S. adolescents is important for understanding differences in their risk of pregnancy. In 2013, the U.S. birth rate for teenagers aged 15-19 dropped 57% from its peak in 1991, paralleling a decline in the teen "pregnancy" rate. But these rates are still higher than those in other…

Objectives: This report presents preliminary data for 2011 on births in the United States. U.S. data on births are shown by age, live-birth order, race, and Hispanic origin of mother. Data on marital status, cesarean delivery, preterm births, and low birthweight are also presented. Methods: Data in this report are based on approximately 100…

The national Youth Risk Behavior Survey (YRBS) monitors priority health risk behaviors that contribute to the leading causes of death, disability, and social problems among youth and adults in the United States. The national YRBS is conducted every two years during the spring semester and provides data representative of 9th through 12th grade…

In the United States, nearly two-thirds of all deaths among young people aged 10-14 years result from only five causes: motor-vehicle crashes (23.4%), other unintentional injuries (15.7%), cancer (12.5%), suicide (7.2%), and homicide (5.2%). Across all age groups in the United States, the leading causes of illness and death are related to the…

To monitor priority health-risk behaviors among youth and young adults, the Centers for Disease Control and Prevention (CDC) developed the Youth Risk Behavior Surveillance System (YRBSS). The YRBSS includes national, state, territorial, and local school-based surveys of high school students in grades 9-12. In addition, some states, territories,…

This report presents data on the current status of adolescent health. Many of the measures of health status are shown by single year of age or by 2- or 3-year age intervals to highlight the changes that occur in health status as adolescents move through this important developmental period. Summary measures combining 5- or 10-year age groups (the…

The "Morbidity and Mortality Weekly Report" ("MMWR") Series is prepared by the Centers for Disease Control and Prevention (CDC). Data in the weekly "MMWR" are provisional, based on weekly reports to CDC by state health departments. This issue of "MMWR" contains the following studies: (1) Youth Risk Behavior…

To monitor priority health-risk behaviors among youth and young adults, the Centers for Disease Control and Prevention developed the Youth Risk Behavior Surveillance System (YRBSS). The YRBSS includes national, state, territory, and local school-based surveys of high school students in grades 9-12. In addition, some states, territories, and cities…