Table 2.

Classification of activities in which an SRR concussion was sustained by level of contact among 5–18 year-olds.

Sport Types	All (n = 3280)		5–9 Years (n = 164)		10–12 Years (n = 604)		13–18 Years (n = 2512)
	n	%	n	%	n	%	n	%
Contact or collision sports	2304	70.2	96	58.5	435	72.0	1773	70.6
Basketball	365	11.1	18	11.0	78	12.9	269	10.7
Field hockey	88	2.7	4	2.4	10	1.7	74	2.9
Football	505	15.4	27	16.5	103	17.1	375	14.9
Ice hockey	240	7.3	13	7.9	51	8.4	176	7.0
Lacrosse	198	6.0	2	1.2	20	3.3	176	7.0
Martial arts	18	0.5	1	0.6	2	0.3	15	0.6
Rugby	58	1.8	0	0.0	1	0.2	57	2.3
Soccer	652	19.9	28	17.1	149	24.7	475	18.9
Water polo	20	0.6	0	0.0	1	0.2	19	0.8
Wrestling	140	4.3	3	1.8	19	3.1	118	4.7
Other	20	0.6	0	0.0	1	0.2	19	0.8
Limited contact sports	838	25.5	47	28.7	144	23.8	647	25.8
Baseball	75	2.3	9	5.5	19	3.1	47	1.9
Biking	35	1.1	4	2.4	5	0.8	26	1.0
Cheerleading	164	5.0	4	2.4	24	4.0	136	5.4
Dodgeball	15	0.5	0	0.0	4	0.7	11	0.4
Flag football	25	0.8	2	1.2	7	1.2	16	0.6
Gymnastics	53	1.6	2	1.2	11	1.8	40	1.6
Horseback riding	40	1.2	2	1.2	9	1.5	29	1.2
Ice skating	20	0.6	5	3.0	6	1.0	9	0.4
Kickball	11	0.3	3	1.8	7	1.2	1	0.0
Roller skating	6	0.2	1	0.6	1	0.2	4	0.2
Skateboarding	13	0.4	0	0.0	0	0.0	13	0.5
Skiing	57	1.7	7	4.3	11	1.8	39	1.6
Snowboarding	75	2.3	2	1.2	9	1.5	64	2.5
Softball	98	3.0	1	0.6	11	1.8	86	3.4
Trampoline	6	0.2	1	0.6	2	0.3	3	0.1
Volleyball	101	3.1	1	0.6	6	1.0	94	3.7
Weightlifting	7	0.2	0	0.0	0	0.0	7	0.3
Other	37	1.1	3	1.8	12	2.0	22	0.9
Non-contact sports	103	3.1	13	7.9	13	2.2	77	3.1
Climbing	4	0.1	2	1.2	1	0.2	1	0.0
Color guard	13	0.4	0	0.0	0	0.0	13	0.5
Crew	7	0.2	0	0.0	0	0.0	7	0.3
Dancing	16	0.5	2	1.2	1	0.2	13	0.5
Swimming	36	1.1	6	3.7	3	0.5	27	1.1
Tennis	4	0.1	0	0.0	0	0.0	4	0.2
Track and field	8	0.2	0	0.0	0	0.0	8	0.3
Other	15	0.5	3	1.8	8	1.3	4	0.2
Other activities	35	1.1	8	4.9	12	2.0	15	0.6
Fitness training	4	0.1	0	0.0	0	0.0	4	0.2
Physical education	9	0.3	3	1.8	1	0.2	5	0.2
Free playing	13	0.4	3	1.8	8	1.3	2	0.1
Recess	3	0.1	1	0.6	2	0.3	0	0.0
Other	6	0.2	1	0.6	1	0.2	4	0.2