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A planned secondary analysis of a prospective, multicentre cohort study.
Nine emergency departments (ED) within the Pediatric Emergency Research Canada Network.
Aged between 5.00 and 17.99 years and diagnosed with a concussion following a traumatic head injury in the preceding 48 hours.
Return to physical activity within 7 days postinjury (ranging from light exercise to a full return to competitive sports).
No physical activity within 7 days postinjury. Propensity scores were derived to account for potential confounding baseline characteristics. Patients in each intervention group were matched 1:1 in random order based on the propensity scores.
Age, sex, duration of prior concussion, duration of loss of consciousness, presence of symptoms on the initial concussion evaluation, personal/family history of migraine, learning/developmental disorder, …
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