Concussion
Meaning of concussion: For the purposes of this Statement of Principles, concussion: (a) means a mild traumatic brain injury resulting from the transfer of kinetic energy to the brain from external physical forces, which is manifested by a temporary disturbance in neurological function that does not meet the criteria for moderate to severe traumatic brain injury; and (b) excludes injury from radiation, electricity, heat and surgery.
Reasonable Hypothesis (RH) — Statement of Principles No. 92 of 2018
At least one of the following factors must as a minimum exist before it can be said that a reasonable hypothesis has been raised connecting concussion or death from concussion with the circumstances of a person's relevant service:
- (1)experiencing a specified event at the time of the clinical onset of concussion;
Note: specified event is defined in the Schedule 1 - Dictionary.
- (2)inability to obtain appropriate clinical management for concussion;
Aggravation-only factors: the factors in subsection 9(2) apply only to material contribution to, or aggravation of, the condition where it was suffered or contracted before or during (but did not arise out of) the person’s relevant service.
Balance of Probabilities (BoP) — Statement of Principles No. 93 of 2018
2 factors
At least one of the following factors must exist before it can be said that, on the balance of probabilities, concussion or death from concussion is connected with the circumstances of a person's relevant service:
- (1)experiencing a specified event at the time of the clinical onset of concussion;
Note: specified event is defined in the Schedule 1 - Dictionary.
- (2)inability to obtain appropriate clinical management for concussion;
Aggravation-only factors: the factors in subsection 9(2) apply only to material contribution to, or aggravation of, the condition where it was suffered or contracted before or during (but did not arise out of) the person’s relevant service.
