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Comprehensive demographic, clinical, and cognitive batteries were performed in addition to primary investigation of fALFF and ReHo. All pmTBI were classified as \u201cpersistent\u201d or \u201crecovered\u201d based on both assessment periods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Statistical Tests<\/jats:title><jats:p>Chi\u2010square, nonparametric, and generalized linear models for demographic data. Generalized estimating equations for clinical and cognitive data. Voxelwise general linear models (AFNI's 3dMVM) for fALFF and ReHo assessment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Evidence of recovery was observed for some, but not all, clinical and cognitive measures at 4\u2009months postinjury. fALFF was increased in the left striatum for pmTBI relative to HC both at 1\u2009week and 4\u2009months postinjury; whereas no significant group differences (<jats:italic>P<\/jats:italic>\u2009&gt;\u20090.001) were observed for ReHo. Age\u2010at\u2010injury did not moderate either resting\u2010state metric across groups. In contrast to analyses of pmTBI as a whole, there were no significant (<jats:italic>P<\/jats:italic>\u2009&gt;\u20090.001) differences in either fALFF or ReHo in patients with persistent postconcussive symptoms compared to recovered patients and controls at 4\u2009months postinjury.<\/jats:p><\/jats:sec><jats:sec><jats:title>Data Conclusions<\/jats:title><jats:p>Our findings suggest prolonged clinical recovery and alterations in the relative amplitude of resting\u2010state fluctuations up to 4\u2009months postinjury, but no clear relationship with age\u2010at\u2010injury or subjective symptom report.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>1<\/jats:p><\/jats:sec><jats:sec><jats:title>Technical Efficacy<\/jats:title><jats:p>2 J. MAGN. RESON. IMAGING 2020;52:1701\u20131713.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.27249","type":"journal-article","created":{"date-parts":[[2020,6,27]],"date-time":"2020-06-27T11:14:25Z","timestamp":1593256465000},"page":"1701-1713","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Resting\u2010State Power and Regional Connectivity After Pediatric Mild Traumatic Brain Injury"],"prefix":"10.1002","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8285-7758","authenticated-orcid":false,"given":"David D.","family":"Stephenson","sequence":"first","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy B.","family":"Meier","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery Medical College of Wisconsin  Milwaukee Wisconsin USA"},{"name":"Department of Cell Biology Neurobiology and Anatomy, Medical College of Wisconsin  Milwaukee Wisconsin USA"},{"name":"Department of Biomedical Engineering Medical College of Wisconsin  Milwaukee Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sharvani","family":"Pabbathi Reddy","sequence":"additional","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cidney R.","family":"Robertson\u2010Benta","sequence":"additional","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Danielle C.","family":"Hergert","sequence":"additional","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew B.","family":"Dodd","sequence":"additional","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicholas A.","family":"Shaff","sequence":"additional","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Josef M.","family":"Ling","sequence":"additional","affiliation":[{"name":"The Mind Research Network\/LBERI  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Scott J.","family":"Oglesbee","sequence":"additional","affiliation":[{"name":"Emergency Medicine University of New Mexico  Albuquerque New Mexico USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard A.","family":"Campbell","sequence":"additional","affiliation":[{"name":"Departments of Psychiatry &amp; 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