• Mark D Peterson, Neil Kamdar, Daniel G Whitney, Sophia Ng, Anthony Chiodo, and Denise G Tate.
• Department of Physical Medicine and Rehabilitation, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA; Institute for Healthcare Policy and Innovation, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA. Electronic address: mdpeterz@med.umich.edu.
• Spine J. 2019 Oct 1; 19 (10): 1680-1686.

BackgroundIndividuals living with a spinal cord injury (SCI) are at heightened risk for a number of chronic health conditions such as secondary comorbidities that may develop or be influenced by the injury, the presence of impairment, and/or the process of aging. However, very little is known about the development of secondary comorbidities among individuals living with nontraumatic SCIs (NTSCIs).PurposeThe objective of this study was to compare the prevalence of psychological morbidities and chronic diseases among adults with and without NTSCIs.DesignCross-sectional cohort from a nationwide insurance claims database.MethodsPrivately insured beneficiaries were included if they had an ICD-9-CM diagnostic code for a NTSCI and accompanying diagnosis of paraplegia, tetraplegia, quadriplegia, or unspecified paralysis (n=10,006). Adults without SCIs were also included (n=779,545). Prevalence estimates of common psychological morbidities, chronic diseases, and multimorbidity (≥2 conditions) were compared.ResultsAdults with NTSCIs had a higher prevalence of adjustment reaction (11.4% vs 5.1%), anxiety disorders (23.7% vs 14.5%), depressive disorders (31.6% vs 9.6%), drug dependence (3.4% vs 0.8%), episodic mood disorders (15.9% vs 5.4%), central pain syndrome (1% vs 0%), psychogenic pain (1.9% vs 0.2%), dementia (5.2% vs 1.5%), and psychological multimorbidity (29.3% vs 11.6%), as compared to adults without SCIs. The adjusted odds of psychological multimorbidity were 1.86 (95% confidence interval: 1.76-2.00). Adults with NTSCIs also had a significantly higher prevalence of all chronic diseases and chronic disease multimorbidity (73.5% vs 18%), except HIV/AIDS. After propensity matching for age, education, race, sex, and the chronic diseases (n=7,419 matched pairs), there was still a higher prevalence of adjustment reaction (9.2% vs 5.4%), depressive symptoms (23.5% vs 16.0%), central pain syndrome (1% vs 0%), psychogenic pain (1.5% vs 0.3%), and psychological multimorbidity (20.2% vs 17.4%) among adults with NTSCIs.ConclusionsAdults with NTSCIs have a significantly increased prevalence of psychological morbidities, chronic disease, and multimorbidity, as compared to adults without SCIs. Efforts are needed to facilitate the development of improved clinical screening algorithms and early interventions to reduce risk of disease onset/progression in this higher risk population.Copyright © 2019 Elsevier Inc. All rights reserved.

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