Table 3.

Summary of patient demographics, scores on Emergency Department Concussion Assessment Tool and management in the emergency department*

Variable	Reattended	No reattendance	P value
	(n=3)	(n=37)
Age, median (IQR), years	53	36.00 (23.75–68.00)	0.6812
Male	2 (66.7)	17 (45.9)	–
Time between injury and assessment, median (IQR), hours	15.83	15.50 (3.50–37.54)	0.719
Sports-related HIs	0 (0.0)	5 (13.5)	–
Number of previous concussions, median (IQR)	0	0.00 (0.00–0.50)	1
Hospitalised for a HI in the past	0 (0.0)	6 (16.2)	–
Diagnosed or treated for headache disorder or migraines	1 (33.3)	10 (27.0)	–
Diagnosed with learning disabilities or dyslexia	0 (0.0)	2 (5.4)	–
Diagnosed with ADHD	0 (0.0)	0 (0.0)	–
Diagnosed with depression, anxiety or sleep disorder	0 (0.0)	8 (21.6)	–
Currently prescribed medication	2 (66.7)	22 (59.5)	–
Cause
Direct blow	1 (33.3)	17 (45.9)	–
Fall	1 (33.3)	18 (48.6)
Motor vehicle collision	1 (33.3)	2 (5.4)
Step 2 score—orientation (0–5), median (IQR)	3	5.00 (4.75–5.00)	0.0451
Step 3 score—immediate memory (0–15), median (IQR)	13	14.00 (13.00–15.00)	0.365
Step 4 score—number of symptoms (0–22), median (IQR)	17	9.00 (4.50–16.50)	0.142
Step 4 score—symptom severity (0–132), median (IQR)	67	26.00 (9.75–51.00)	0.04
Step 5 score—balance examinations (0–40), median (IQR)	0	31.00 (10.00–37.50)	0.328
Step 6 score—delayed recall (0–5), median (IQR)	2	3.00 (2.00–4.50)	0.559
Investigated with a CT head scan	2 (66.7)	16 (43.2)	–
Management
Discharged home same day	3 (100)	34 (91.9)	–
Discharged home next day	0 (0)	2 (5.4)
Admitted	0 (0)	1 (2.7)

*Values shown is number (%) of participants unless stated otherwise. If a median is shown, in brackets is the IQR. No IQR could be generated for reattenders as the sample was too small. In brackets after variables that are scored are the potential scores available for that section.

ADHD, attention deficit hypersensitivity disorder; HI, head injury.