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.
Assaults by romantic partners often aren't isolated events.
Dating violence can be verbal, which may include shouting or calling bad names to the partner, his or her relatives or friends.
Victims of teen dating violence often keep the abuse a secret.
They should be encouraged to reach out to trusted adults like parents, teachers, school counselors, youth advisors, or health care providers.
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.