Table 5. .

Team-Based Risk (Proportions of Teams per Season With at Least 1 Reported Concussion) in Collegiate Sports, by Event Type, National Collegiate Athletic Association Injury Surveillance Program, 2011–2012 Through 2014–2015 Academic Years

Sport	Overall		Competitions		Practices
	Team-Seasons With Concussion Events	Highest No. Reported Within 1 Team-Season	Team-Seasons With Concussion Events	Highest No. Reported Within 1 Team-Season	Team-Seasons With Concussion Events	Highest No. Reported Within 1 Team-Season
	No. (%)		No. (%)		No. (%)
Men's
Baseball	13 (24.5)	1	9 (17.0)	1	4 (7.5)	1
Basketball	48 (40.3)	7	17 (14.3)	3	36 (30.3)	5
Football	79 (80.6)	25	68 (69.4)	12	72 (73.5)	15
Ice hockey	92 (70.8)	12	84 (64.6)	8	37 (28.5)	5
Lacrosse	20 (45.5)	5	16 (36.4)	2	13 (29.5)	4
Soccer	17 (26.6)	5	11 (17.2)	4	11 (17.2)	3
Wrestling	17 (58.6)	12	13 (44.8)	7	12 (41.4)	7
Women's
Basketball	53 (42.7)	6	31 (25.0)	3	35 (28.2)	5
Ice hockey	32 (55.2)	6	31 (53.4)	5	22 (37.9)	3
Lacrosse	28 (44.4)	6	15 (23.8)	4	19 (30.2)	2
Soccer	54 (50.5)	4	45 (42.1)	4	18 (16.8)	3
Softball	28 (31.1)	3	18 (20.0)	3	14 (15.6)	2
Volleyball	37 (32.2)	6	23 (20.0)	3	20 (17.4)	3