Many teens reported being assaulted multiple times, according to the study, based on the CDC's Youth Behavior Risk Surveillance System using questionnaires answered by more than 13,000 high school students."If there is violence once, there is likely to be violence again," Spinks-Franklin says.
"It has to be taken very seriously."Spinks-Franklin say she has seen violence even among relationships between 10- and 11-year-olds."If a parent is concerned that a child is in an unhealthy relationship, they need to address it, but do it in a way that doesn't make the child shut down," she says.
For example, they're more than twice as likely as others to consider suicide.
Boys who have faced dating violence are nearly four times as likely to have been bullied online; girls are more than twice as likely.
Teens are sometimes more willing to talk to doctors, especially if their parents are not in the room.
"They need to feel safe telling a parent."Teens often hide the abuse from their parents, Spinks-Franklin says.
Teens may not be able to confide in friends, either, because abusers sometimes isolate their victims from loved ones.
While it's possible that dating violence could cause thoughts of suicide, it's also possible that children who are depressed are more likely than others to fall into abusive relationships, says Adiaha Spinks-Franklin, a developmental and behavioral pediatrician at Texas Children's Hospital in Houston who was not involved in the new study.
Twenty-one percent of high school girls have been physically or sexually assaulted by someone they dated -- a figure twice as high as previously estimated, a new study shows.
Ten percent of high school boys also report having been physically or sexually assaulted by a dating partner, about the same rate reported in earlier surveys, according to a study led by the Centers for Disease Control and Prevention published today in JAMA Pediatrics.
Authors of the new report note that the CDC has changed the way it phrases its questions about teen dating violence, leading more students to report assaults.
Teens who have experienced dating violence are at much higher risk for a variety of serious problems.
Boys and girls who have been victims of dating violence are more likely to get into fights, carry a weapon, use alcohol, use marijuana or cocaine and have sex with multiple partners the study says.
Researchers don't know if any of these events causes the others, however.