WASHINGTON — It is now just as likely for middle school students to die from suicide as from traffic accidents.

That grim fact was published on Thursday by the Centers for Disease Control and Prevention. They found that in 2014, the most recent year for which data is available, the suicide rate for children ages 10 to 14 had caught up to their death rate for traffic accidents.

The number is an extreme data point in an accumulating body of evidence that young adolescents are suffering from a range of health problems associated with the country’s rapidly changing culture. The pervasiveness of social networking means that entire schools can witness someone’s shame, instead of a gaggle of girls on a school bus. And with continual access to such networks, those pressures do not end when a child comes home in the afternoon.

“It’s clear to me that the question of suicidal thoughts and behavior in this age group has certainly come up far more frequently in the last decade than it had in the previous decade,” said Dr. Marsha Levy-Warren, a clinical psychologist in New York who works with adolescents. “Cultural norms have changed tremendously from 20 years ago.”