More than 1.8 million children in the U.S. suffer traumatic brain injury (TBI) before age 17, according to national survey data released today by the Centers for Disease Control and Prevention...Children with a history of TBI were more likely to have a variety of other health conditions compared with their peers without TBI, including learning disorders (21%), attention-deficit/hyperactivity disorder (21%), speech/language problems (19%); developmental delay (15%), bone, joint, or muscle problems (14%); and anxiety problems (13%).