Table 3.

Participant demographic information and injury characteristics

	Concussed (n=29)	Control (n=15)
Demographic Information
Age (years), Mean (SD)	15 (1.48)	15 (1.66)
Sex, N (%)
Females	21 (72)	11 (73)
Males	8 (28)	4 (27)
History of concussion, N (%)
No history	16 (55.2)	8 (53.3)
One	7 (24.1)	5 (33.3)
Two	3 (10.3)	1 (6.7)
>Three	2 (6.9)	1 (6.7)
Baseline PSCI total, median (range)
Physical	0 (0–7)	0 (0–2)
Cognitive	0 (0–5)	0 (0–4)
Emotional	0 (0–5)	0 (0–1)
Fatigue	0 (0–4)	0 (0–5)
Injury characteristics
Days from baseline to concussion, median (range)	93 (3–325)	–
ACE form injury description
Blow to head, Yes, N (%)	16 (55.2)	–
Cause, Sport	26 (89.6)	–
Retrograde amnesia, Yes, N (%)	2 (6.9)	–
Range of time, s	<5	–
Anterograde amnesia, Yes, N (%)	1 (3.4)	–
Range of time, min	1–2	–
Loss of consciousness, Yes, N (%)	1 (3.4)	–
Range of time, s	5–10
Headache history, Yes, N (%)	1 (3.4)	–
Migraine history, Yes, N (%)	1 (3.4)	–
Psychiatric history, Yes, N (%)	2 (6.9)	–
Number of postconcussion follow-up visits, range	1–9	1–7

ACE, acute concussion evaluation; PCSI, Post-Concussion Symptom Inventory.