In the end, it seems that though concussions may be significant contributors to the national adolescent headache burden, premorbid headaches themselves may not be an independent risk factor for concussion, potentially because of greater clinician threshold to diagnosis, especially considering premorbid headaches were associated with more severe concussions.
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A multicenter, longitudinal survey of headaches and concussions among youth athletes in the United States from 2009 to 2019.
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