Predictors of clinical recovery can assist the health care practitioner in managing the concussed athlete. These predictors are associated with protracted recovery:

• high severity of acute and subacute concussive symptoms
• a high number of concussive symptoms
• prolonged loss of consciousness (longer than one minute)
• post-concussive seizure
• previous history of concussion
• age of the athlete
• female sex
• history of depression, anxiety or migraine.