Table 2

Rates of head injury with symptoms of concussion (SoC, per 10 000) by cause of injury

Age	Sports related SoC	Sports concussionSoC rate	Assault related SoC	Assault SoC rate	SoC from falls	Fall relatedSoC rate	Other causes of SoC
6	7	5.6	15	12.1	134	108.4	4
7	22	17.4	7	5.6	124	98.3	4
8	13	10.2	14	11.0	106	83.4	6
9	25	19.4	24	18.6	135	104.6	3
10	41	32.4	24	19.0	109	86.1	7
11	54	43.6	24	19.4	116	93.7	4
12	62	51.0	36	29.6	105	86.3	2
13	71	58.7	25	20.7	83	68.6	3
14	52	41.4	19	15.1	47	37.4	3
15	82	64.6	21	16.6	45	35.5	2
16	36	28.4	6	5.0	30	24.8	2
Missing	32		14		57		2
All	497	36.2	229	16.7	1091	79.5	42