• Jawad Bilal, Adam Berlinberg, Jaren Trost, Irbaz Bin Riaz, and Sandipan Bhattacharjee.
• Department of Medicine, University of Arizona, Tucson, Arizona.
• Pain Med. 2020 Feb 1; 21 (2): e45-e53.

BackgroundBack pain is a very prevalent complaint, affecting two-thirds of the US population, and it accounts for $100 billion annually in health care expenditures. The occurrence of depression has been reported in existing literature among patients with back pain, but there is limited information regarding health care expenditures among patients with back pain and concurrent depression.ObjectiveTo assess excess total and subtypes of health care expenditures among adults with spondylosis, intervertebral disc disorders, and other back problems who reported having depression compared with those without depression in the United States.MethodsWe utilized a cross-sectional design, pooling Medical Expenditure Panel Survey data from 2010-2012. The eligible study sample included adults (age ≥18 years) who reported positive health care expenditure. Total and subtypes of health care expenditures constituted the dependent variable. Ordinary least squares (OLS) regressions on logged expenditures were performed. Four models were developed to assess influence of demographics, functional ability, and concurrent diagnoses on health care expenditures.ResultsA total of 6,739 adults with spondylosis, intervertebral disc disorders, and other back problems were assessed, 20.2% (N = 1,316) of whom had concurrent depression. Adults with concurrent depression had significantly higher total health care expenditures ($13,153) compared with the nondepression group ($7,477, P < 0.001). Outpatient and prescription expenditures showed similar findings. After adjusting for demographics, functional disabilities, and comorbidities, excess cost remained higher in the group reporting concurrent depression (46%).ConclusionsThis study demonstrates that the presence of depression in adults with spondylosis, intervertebral disc disorders, and other back problems is associated with greater economic burden. These findings remained consistent after adjusting for all independent sets of variables. The study's findings suggest that interventions resulting in better management of depression have the potential to significantly reduce the economic burden in this population.© 2018 American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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