Table 3. Concussion Clinical Outcomes Regression Outcomes.

	No LEMSK Group		LEMSK Group		Regression Outcome
	Baseline	Acute Concussion	Baseline	Acute Concussion	p-Value	Exp(B)(95% CI Exp B)
Total GSC Score (0 – 132)*	5.4 ± 9.7	31.9 ± 23.6	2.4 ± 5.1	25.5 ± 15.3	0.738	0.993 (0.950 – 1.037)
Symptoms Endorsed (0 – 22)*	2.9 ± 4.3	14.2 ± 9.8	1.6 ± 3.1	10.9 ± 5.0	0.619	0.979 (0.899 – 1.066)
SAC (0 – 30)*	27.0 ± 1.9	26.0 ± 1.9	27.1 ± 1.8	26.4 ± 2.2	0.983	0.997 (0.784 – 1.268)
BESS (0 – 60)	15.6 ± 6.3	15.2 ± 5.9	14.5 ± 8.1	13.9 ± 6.1	0.474	1.032 (0.947 – 1.125
Verbal Memory	85.0 ± 10.5	87.6 ± 13.4	87.6 ± 11.7	85.9 ± 14.2	0.064	0.957 (0.913 – 1.003)
Visual Memory*	76.9 ± 13.1	71.8 ± 13.9	78.1 ± 14.0	73.0 ± 14.1	0.724	1.006 (0.971 – 1.043)
Motor Speed*	41.5 ± 5.2	37.9 ± 7.3	39.8 ± 6.6	39.2 ± 7.1	0.297	1.068 (0.944 – 1.208)
Reaction Time*	0.58 ± 0.06	0.64 ± 0.14	0.58 ± 0.06	0.62 ± 0.10	0.642	0.994 (0.000 – 235.1)
Clinical Reaction Time*	208.9 ± 23.7	243.2 ± 71.8	203.0 ± 24.6	218.8 ± 36.8	0.446	0.994 (0.980 – 1.009)
King Devick*	40.8 ± 6.2	50.0 ± 21.3	40.0 ± 5.3	46.9 ± 14.3	0.792	1.007 (0.958 – 1.058)

^*Main effect for time with the Acute Concussion time point worse (p<0.05) than baseline. There were no differences between groups (LEMSK and No-LEMSK) at either Baseline or Acute Concussion time points. None of the concussion clinical test outcomes were significant predictors of subsequent MSK.