Mild traumatic brain injury (TBI) has been proposed as a risk factor for development of Alzheimer’s disease, Parkinson’s disease, depression, and other illnesses. This study’s objective was to determine the association of prior mild TBI with subsequent diagnosis (i.e., at least one year post-injury) of neurologic or psychiatric disease

Berger, Mitchel S.

Boeve, Bradley F.

Bullock, Thomas

Guskiewicz, Kevin M.

Kramer, Joel H.

Miller, Bruce L.

Perry, David C.

Peterson, Matthew J.

Pieper, Carl F.

Sturm, Virginia E.

Welsh-Bohmer, Kathleen A.

Carolina Digital Repository

Association of traumatic brain injury with subsequent neurological and psychiatric disease: a meta-analysis

ObjectiveMild traumatic brain injury (TBI) has been proposed as a risk factor for the development of Alzheimer's disease, Parkinson's disease, depression, and other illnesses. This study's objective was to determine the association of prior mild TBI with the subsequent diagnosis (that is, at least 1 year postinjury) of neurological or psychiatric disease.MethodsAll studies from January 1995 to February 2012 reporting TBI as a risk factor for diagnoses of interest were identified by searching PubMed, study references, and review articles. Reviewers abstracted the data and assessed study designs and characteristics.ResultsFifty-seven studies met the inclusion criteria. A random effects meta-analysis revealed a significant association of prior TBI with subsequent neurological and psychiatric diagnoses. The pooled odds ratio (OR) for the development of any illness subsequent to prior TBI was 1.67 (95% CI 1.44-1.93, p &lt; 0.0001). Prior TBI was independently associated with both neurological (OR 1.55, 95% CI 1.31-1.83, p &lt; 0.0001) and psychiatric (OR 2.00, 95% CI 1.50-2.66, p &lt; 0.0001) outcomes. Analyses of individual diagnoses revealed higher odds of Alzheimer's disease, Parkinson's disease, mild cognitive impairment, depression, mixed affective disorders, and bipolar disorder in individuals with previous TBI as compared to those without TBI. This association was present when examining only studies of mild TBI and when considering the influence of study design and characteristics. Analysis of a subset of studies demonstrated no evidence that multiple TBIs were associated with higher odds of disease than a single TBI.ConclusionsHistory of TBI, including mild TBI, is associated with the development of neurological and psychiatric illness. This finding indicates that either TBI is a risk factor for heterogeneous pathological processes or that TBI may contribute to a common pathological mechanism

Perry, David C

Sturm, Virginia E

Peterson, Matthew J

Pieper, Carl F

Boeve, Bradley F

Miller, Bruce L

Guskiewicz, Kevin M

Berger, Mitchel S

Kramer, Joel H

Welsh-Bohmer, Kathleen A

eScholarship - University of California

Association of traumatic brain injury with subsequent neurological and psychiatric disease: a meta-analysis.

https://cdr.lib.unc.edu/downloads/cr56n589z

Association of traumatic brain injury with subsequent neurological and psychiatric disease: a meta-analysis

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Carolina Digital Repository

eScholarship - University of California