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SCC in the absence of objective impairment is termed subjective cognitive decline (SCD). This study aimed to characterize SCC and SCD among a sample of aging individuals with and without prior repetitive head impact (RHI) exposure, the former of whom are at risk for chronic traumatic encephalopathy (CTE).<\/jats:p>\n <\/jats:sec>\n \n METHODS<\/jats:title>\n \n RHI\u2010exposed (\n N<\/jats:italic>\n \u00a0=\u00a0167) and non\u2013RHI\u2010exposed (\n N<\/jats:italic>\n \u00a0=\u00a0317) Boston University Alzheimer's Disease Research Center (ADRC) participants and their informants completed subjective measures assessing memory and executive function. Participants completed objective tests of these domains.\n <\/jats:p>\n <\/jats:sec>\n \n RESULTS<\/jats:title>\n \n RHI exposure was associated with greater self\u2010 and informant\u2010reported SCC and with over four\u2010fold increased odds of SCD among cognitively unimpaired participants (odds ratio\u00a0=\u00a04.10,\n p\u00a0<\/jats:italic>\n <\u00a00.001). SCC was associated with objective measures in RHI and non\u2010RHI participants.\n <\/jats:p>\n <\/jats:sec>\n \n DISCUSSION<\/jats:title>\n Among RHI\u2010exposed individuals, SCC align with objective cognitive performance. SCD warrants investigation as potential early indicator of RHI\u2010related neuropathologies.<\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/dad2.70407","type":"journal-article","created":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T03:43:10Z","timestamp":1782272590000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Subjective cognitive complaints and decline among aging individuals with prior repetitive head impact exposure"],"prefix":"10.1002","volume":"18","author":[{"given":"Anna","family":"Aaronson","sequence":"first","affiliation":[{"name":"Boston University Alzheimer's Disease Research Center and CTE Center Boston University Chobanian & Avedisian School of Medicine Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica T.","family":"Ly","sequence":"additional","affiliation":[{"name":"Boston University Alzheimer's Disease Research Center and CTE Center Boston 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