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Study design
A planned secondary analysis of a prospective, multicentre cohort study.
Setting
Nine emergency departments (ED) within the Pediatric Emergency Research Canada Network.
Patients
Aged between 5.00 and 17.99 years and diagnosed with a concussion following a traumatic head injury in the preceding 48 hours.
Exposure
Return to physical activity within 7 days postinjury (ranging from light exercise to a full return to competitive sports).
Comparison
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.
Covariates considered
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, …
Footnotes
Contributors ANK drafted the initial manuscript and drafted revisions. SH developed the concept for the manuscript and contributed to the revision and development of the final manuscript.
Provenance and peer review Not commissioned; internally peer reviewed.