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Research Objectives The objective of the study was to determine the characteristics of chronic low back pain (CLBP) comorbidity and its impact on opioid and non‐opioid treatments among Chicagoland patients with CLBP. Design A retrospective cross‐sectional study comparing differences in comorbidity and treatment patterns among Chicagoland patients with CLBP against a matched control arm without chronic low back pain (NCLBP). Setting Academic hospital system outpatient services. Participants Using the International Classification of Diseases, 10th Revision codes (ICD 10) 9589 patients were identified with CLBP with a median age of 57 years old and 62.32% female distribution. The NCLBP group comprised 9589 age‐, sex‐, race‐, and region‐matched patients. Results An increased prevalence across all 17 studied comorbidities was found in CLBP patients as compared to NCLBP patients. CLBP patients carried an average of 3.5 comorbidities compared with 2.4 comorbidities in NCLBP patients. Rheumatoid arthritis (RA), joint arthritis, and obesity had the strongest relationship with CLBP. Additionally, we found that the most prescribed treatment for CLBP were opioids, which ranked above NSAIDs and physical therapy. 56% of CLBP patients were prescribed opioids as compared to 36% of NCLBP patients (Odds Ratio = 2.28, 95% CI: 2.16–2.42). Tramadol was the agent with the strongest relationship to CLBP. CLBP patients were more likely to use two or more opioids concomitantly. The number of total treatments was positively associated with the number of comorbidities in both CLBP and NCLBP patients (Cochran‐Armitage trend test p < 0.0001). Conclusions Chronic low back pain patients showed a higher number of comorbidities than their NCLBP counterparts. Comorbidity count trended positively with higher treatment burden with opioids being the most prescribed treatment, often with poly‐opioid use, over conservative modalities such as NSAIDs and physical therapy.

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