Table 3

χ² analysis of improvements in SCAT5 sub-modes for recent (<3 months) and distant (>3 months) concussed players

Sub-mode	Cohort	N	Improved (%)	Worse (%)	No change (%)	P value
Symptom number	Distant	123	30.1	15.4	54.5	0.548
Symptom number	Recent	20	35.0	5.0	60.0	0.548
Symptom severity	Distant	123	31.7	15.4	52.8	0.528
Symptom severity	Recent	20	35.0	5.0	60.0	0.528
Orientation	Distant	441	10.7	15.2	74.1	0.501
Orientation	Recent	60	15.0	16.7	68.3	0.501
Immediate memory (10-word list)	Distant	101	52.5	36.6	10.9	0.819
Immediate memory (10-word list)	Recent	18	50.0	33.3	16.7	0.819
Delayed recall (10-word list)	Distant	101	44.6	27.7	27.7	0.644
Delayed recall (10-word list)	Recent	18	50.0	33.3	16.7	0.644
Digits backward	Distant	441	29.0	16.3	54.6	0.032
Digits backward	Recent	60	45.0	8.3	46.7	0.032
Final concentration	Distant	441	30.6	16.6	52.8	0.026
Final concentration	Recent	60	48.3	10.0	41.7	0.026
Tandem gait time	Distant	381	49.3	40.9	9.7	0.602
Tandem gait time	Recent	52	42.3	46.2	11.5	0.602
Double leg errors	Distant	441	1.1	0.7	98.2	0.341
Double leg errors	Recent	60	1.7	1.7	96.7	0.341
Single leg errors	Distant	441	40.8	30.8	28.3	0.016
Single leg errors	Recent	60	30.0	50.0	20.0	0.016
Tandem stance errors	Distant	441	28.1	26.1	45.8	0.733
Tandem stance errors	Recent	60	25.0	23.3	51.7	0.733
Total balance errors	Distant	441	43.8	33.1	23.1	0.051
Total balance errors	Recent	60	38.3	48.3	13.3	0.051

Bonferroni correction resulted in significance accepted at p<0.002.
SCAT, Sports Concussion Assessment Tool.