Data are for the U.S.
- Percent of never-married teens aged 15-19 who have ever had sexual intercourse: Females 42.4%, Males 44.2% (2011-2013)
- Mean age at first menstrual period for women aged 15-44: 12.5 years
- Percent of women aged 15-44 who have ever been treated for pelvic inflammatory disease (PID): 3.4%
Source: Key Statistics from the National Survey of Family Growth (data are for 2011-2015)
Page last reviewed: July 15, 2016
Content source: CDC/National Center for Health Statistics