Emergency department visits for concussions occurring in children's and teens' team sports have risen sharply since the late 1990s, researchers say.
The estimated number of adolescents 14 to 19 years old seen in emergency rooms for concussions rose from about 7,000 in 1997 to nearly 23,000 in 2007, according to Dr. Lisa Bakhos of Brown University in Providence, R.I. and colleagues.
Among children in the 8 to 13 age range, emergency room visits increased from an estimated 3,800 in 1997 to 7,800 in 2007, the researchers reported online in the journal Pediatrics.
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Over the same period, they noted, school sports participation fell by some 17 percent, according to survey data from the National Sporting Goods Association.
"Our assessment highlights the need for additional research and injury prevention strategies," Bakhos and colleagues wrote.
On the other hand, it was unclear from their data whether head-jarring injuries in sports are really becoming more common -- or whether fewer young athletes receiving such injuries go untreated.
Bakhos and colleagues drew on data from the National Electronic Injury Surveillance System (NEISS) from 1997 to 2007, bolstered by another, more detailed NEISS dataset covering 2001 to 2005. The NEISS is maintained by the federal Consumer Product Safety Commission and is based on injury reports submitted by a nationwide sample of 100 hospitals with 24-hour emergency departments.
Over the entire period, the data extrapolated to a national total of about 503,000 emergency department visits for all-origin concussion among 8- to 19-year-olds from 2001 to 2005.
Sports were related to 50 percent of concussions, with individual sports, such as bicycling and skiing, and leisure activities accounting for more than half of those injuries.
Team sports -- including football, basketball, baseball, soccer, and ice hockey -- caused an estimated 38 percent of the sport-related concussions. Those concussions included 25 percent of the head injuries seen in younger children but about half of those in teens.
Bakhos and colleagues urged that, for several sports, more could be done to prevent concussions. They noted, for example, that no state requires helmets for skiers of any age -- despite previous recommendations from injury-prevention groups.
"Soccer is another sport in which prevention strategies could be bolstered," they contended. Bakhos and colleagues observed that many concussions occur from colliding with goal posts or when struck by balls kicked at close range.
The researchers suggested that proper goal post padding and decreasing the air pressure in soccer balls -- at least for younger players -- could reduce concussions in that sport.
Bakhos and colleagues did not break down concussion rates by gender, but a separate review published online in Pediatrics by the American Academy of Pediatrics' Council on Sports Medicine and Fitness noted that girls may have higher concussion rates than boys in similar sports -- a risk often obscured by the high concussion rates seen in football, played almost exclusively by boys.
The review, led by Dr. Mark Halstead of Washington University in St. Louis, also provided guidance on managing concussions in young athletes.