Motor system alterations in retired former athletes: the role of aging and concussion history.

BMC Neurol · 2013 · PMC3765614 · PMID 23972282

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failed to reach significanceno p-value reported

H-MRS data collected in M1 revealed a near significant between-group effect on NAA/H 2 O ( F 1, 27 = 4.01; P = .057; η p 2 = 0.143) [Mean NAA/H 2 O: (Control group: 1.61E-4 ± 1.63E-5; Concussion group: 1.85E-4 ± 3.37E-5)], but the ANCOVA with age, level of education and APOE genotype as covariates failed to reach significance.

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