Table 1.

Demographic and clinical characteristics of concussed athletes and healthy controls.

	Concussed athletes (n=69)	Healthy controls (n=69)	p-value
Age in years, mean (SD)	16.0 (1.3)	15.8 (1.2)	0.33
Male, n (%)	34 (49)	37 (54)	0.61
Race/ethnicity, n (%)			0.97
Non-Hispanic white	52 (75)	51 (74)
Non-Hispanic black	8 (12)	8 (12)
Other/unknown	9 (13)	10 (14)
History of prior concussions, n (%)*	32 (46)	24 (35)	0.14
Past medical history, n (%)
Mood disorder (anxiety or depression)	11 (16)	4 (6)	0.06
ADHD	8 (12)	10 (14)	0.61
Motion sickness	5 (7)	4 (6)	0.73
Vision abnormality (strabismus or amblyopia)	3 (4)	1 (1)	0.31
Days from injury to assessment, median (IQR)	10 (5,15)	n/a

^*One concussed athlete had missing data on history of prior concussion.