Mindfulness-Based Intervention for Pediatric Mild Traumatic Brain Injury

Inclusion Criteria: * Participants presenting to five PERC EDs after sustaining a direct or indirect head injury * Aged 12 through 17.99 years * Diagnosed with a definite or suspected concussion, defined by the American College of Rehabilitation Medicine definition * Score ≥6 on the 5P rule * Suffered the index injury in the previous 48 hours * Proficient in English or French Exclusion Criteria: * Glasgow Coma Scale ≤13 * Abnormality on standard neuroimaging studies, including positive head CT findings (Note: neuroimaging is not required, but may be performed if clinically indicated) * Neurosurgical operative intervention, intubation or intensive care required * Multi-system injuries with treatment requiring hospital admission, operating room or procedural sedation in ED (Note: hospital admission for observation or management of ongoing concussion symptoms is not an exclusion criteria) * Severe neurological developmental delay resulting in communication difficulties * Intellectual disability/mental retardation, autism spectrum disorder (history of attention deficit hyperactivity disorder, learning disability, or Tourette's syndrome is not an exclusion) * Intoxication at the time of ED presentation as per clinician judgment * No clear history of trauma as primary events (e.g., seizure, syncope or migraine) * Prior psychiatric hospitalization * Prior diagnosis of severe psychiatric disorder such as schizophrenia (diagnosis of anxiety or depression are not exclusionary) * Ina…