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Title: Does cognitive decline occur decades after moderate to severe traumatic brain injury? A prospective controlled study.
Austin Authors: Hicks, Amelia J;Spitz, Gershon;Rowe, Christopher C ;Roberts, Caroline M;McKenzie, Dean P;Ponsford, Jennie L
Affiliation: Monash-Epworth Rehabilitation Research Centre, Turner Institute for Brain and Mental Health, School of Psychological Sciences, Monash University, Melbourne, Australia
Molecular Imaging and Therapy
Research Development and Governance Unit, Epworth HealthCare Melbourne, Australia and Department of Epidemiology and Preventive Medicine, Monash University Melbourne, Melbourne, Australia
Issue Date: 2022
Date: 2021
Publication information: Neuropsychological Rehabilitation 2022; 32(7): 1530-1549
Abstract: This prospective controlled study examined long-term trajectories of neuropsychological performance in individuals with traumatic brain injury (TBI) compared to healthy controls, and the impact of IQ, age at injury, time since injury, and injury severity on change over time. Fifty-three individuals with moderate to severe TBI (60.37% male; M = 59.77 yrs, SD = 14.03), and 26 controls (46.15% male; M = 63.96 yrs, SD = 14.42) were studied prospectively (M = 12.72 yrs between assessments). Participants completed measures of premorbid IQ (Weschler Test of Adult Reading), processing speed (Digit Symbol Coding Test), working memory (Digit Span Backwards), memory (Rey Auditory Verbal Learning Test) and executive function (Trail Making Test Part B; Hayling Errors), at a mean of 10.62 yrs (Initial) and 23.91 yrs (Follow-Up) post injury. Individuals with TBI did not show a significantly greater decline in neuropsychological performance over time compared with demographically similar controls. There was no association between change over time with IQ, time since injury or injury severity. Being older at injury had a greater adverse impact on executive function at follow-up. In this small sample, a single moderate to severe TBI was not associated with ongoing cognitive decline up to three decades post injury. Changes in cognitive function were similar between the groups and likely reflect healthy aging.
DOI: 10.1080/09602011.2021.1914674
ORCID: 0000-0002-1152-0576
Journal: Neuropsychological Rehabilitation
PubMed URL: 33858304
Type: Journal Article
Subjects: TBI
Traumatic brain injury
cognitive decline
Appears in Collections:Journal articles

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