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National Health Statistics Report No. 104. An estimated 55% of male and female teens have had sexual intercourse by age 18 and approximately 80% of teens used some form of contraception at first sex, according to a new report by the CDC’s National Center for Health Statistics (NCHS).
Vaginal sex had the youngest age of initiation (Mean = 18.5 years, SD = 4.7 years), though the mean age of initiation of oral sex was only about one year older (Mean = 19.5 years, SD = 5.9 years) (d = -0.19).
The number of teens from ages 15 to 19 who have had sex dropped 14% for females and 22% for males over the past 25 years, revealed new data published by the U.S. Centers for Disease Control and...
This new report explores just how a demographically representative sample of teens in the United States engaged with or experienced pornography online, from how old they were when they first encountered it, to how it impacts their views on sex and sexual relationships.
The media has a great impact on teen sex.* 78%: 22%: I know an adult in my life to talk with about sex and birth control.* 75%: 25%: Having teen parents talk to teens about what it is like to have their children prevents pregnancy.* 68%: 32%: Adults are truthful with teens about sex and pregnancy.*** 50%: 50%
In 2015–2017, 42% of never-married female teenagers aged 15–19 and 38% of never-married male teenagers had had sexual intercourse; the percentage declined by 17% for male teenagers between 2002 and 2015–2017. In 2015–2017, the cumulative probabilities of having had sexual intercourse by age were similar for males and females.
Despite their behaviors, 90% of adolescents "agree that most young people have sex before they are really ready." [14] The average age of first sexual intercourse in the United States is around 16.8 for males and around 17.2 for females, [15] [16] and that has been rising in recent years. [17]
