TABLE B3.

Results from the univariate ANCOVAs from each metabolite (tNAA, tCr, tCho, Glx, and mI) between groups (Concussion vs. OI).

	tNAA		tCr		tCho		Glx		mI
ANCOVA model	F = 0.007, p = .932		F = 0.326, p = .568		F = 1.493, p = .222		F = 0.347, p = .556		F = 0.034, p = .853
	F	p	F	p	F	p	F	p	F	p
Covariates
Group	0.007	.932	0.326	.568	1.493	.222	0.347	.556	0.034	.853
fWM	123.9	.0001	188.5	.0001	1.647	.200	67.46	.000	31.27	.0001
Age	46.3	.0001	7.251	.007	1.284	.258	4.983	.026	0.701	.403
Sex	0.011	.916	0.893	.345	0.032	.859	4.973	.026	0.0001	.999
Vendor	1972	.0001	218.2	.0001	369.7	.000	632	.000	531.2	.0001
Site	14.32	.0001	1.294	.256	13.56	.000	8.985	.003	0.178	.674

Note: The significance of the model is included as well as the contributions of each covariate within the model. The covariates included within the univariate ANCOVAs were age, sex, site, and vendor. This model includes fraction white matter (fWM) as a covariate. p‐values in bold were considered statistically significant at p < .05.

Abbreviation: OI, orthopedic injury.