*The following is excerpted from an online article posted on HealthDay.
There's good news and bad news from a new study of children visiting U.S. emergency departments for head injuries: The rate of these potentially serious events has fallen among boys, but risen for girls.
In recent years, the danger of concussion from contact sports -- most notably football -- has garnered much media attention. So the authors of the new report theorized that new "safety-minded rule changes" for high school football, or even more parents saying no to boys participating in the sport, might be driving the decline in head injuries.
The study involved data on U.S. emergency department visits for sports- and recreation-related traumatic brain injury in people under the age of 18, tracked between 2010 and 2016.
The investigators found that rates of these cases for boys rose from about 487 per 100,000 in 2010 to 559 in 2012. However, the numbers then began to drop, so that by 2016 the rate of traumatic brain injury in boys had fallen to about 483 cases per 100,000.
Still, traumatic brain injury remains "a significant public health problem," said a team led by Kelly Sarmiento, a researcher at the division of unintentional injury prevention at the U.S. Centers for Disease Control and Prevention.
Sarmiento's team said efforts to limit "player-to-player contact and rule changes that reduce risk for collisions are critical to preventing traumatic brain injuries" in football, soccer and other contact sports.
The study also showed that any gains among boys weren't being seen among girls. While the rate of ER-treated head injuries for girls under the age of 18 was 216.5 per 100,000 children in 2010, by 2016 that rate had risen to about 254 per 100,000. It's not clear why girls have experienced an increase in these events, the study authors said.
Overall, across the seven-year study period, an estimated 2 million children were taken to an ER because of a traumatic brain injury suffered during sports or other recreational activities, the study found. That translates to about 283,000 such cases annually.
Not surprisingly, boys were twice as likely as girls to experience these types of injuries, and among boys contact sports accounted for 45 percent of cases, the findings showed.
Broken down further, football-related head injuries made up about 27 percent of all cases of traumatic brain injury for boys. Among girls, soccer was the contact sport most apt to cause this type of injury, the CDC team reported.
The report was published in the CDC's Morbidity and Mortality Weekly Report.