• Sharon S Lee, YoonSun Choi, and Glenn S Pransky.
• Liberty Mutual Research Institute for Safety, Hopkinton, Massachusetts.
• J Emerg Med. 2016 Mar 1; 50 (3): 376-84.e1-2.

BackgroundInitial management of acute occupational low back pain (AOLBP) commonly occurs in the emergency department (ED), where opioid prescribing can vary from the clinical guidelines that recommend limited use.ObjectiveThe objective of this study was to explore how opioids are prescribed in the ED and the impact on work disability and other outcomes in AOLBP.MethodsA retrospective cohort study was conducted. All acute compensable lost-time LBP cases seen initially in the ED with a date of injury from January 1, 2009 to December 31, 2011 were identified within a nationally representative Workers' Compensation dataset. Multivariate models estimated the effect of early opioids (received within 2 days of ED visit) on disability duration, long-term opioid use, total medical costs, and subsequent surgeries.ResultsOf the cohort (N = 2887), 12% received early opioids; controlling for severity, this was significantly associated with long-term opioid use (adjusted risk ratio = 1.29; 95% confidence interval 1.05-1.58) and increased total medical costs for those in the highest opioid dosage quartile, but not associated with disability duration or subsequent low back surgery.ConclusionsEarly opioid prescribing in the ED for uncomplicated AOLBP increased long-term opioid use and medical costs, and should be discouraged, as opioid use for low back pain has been associated with a variety of adverse outcomes. However, ED providers may be becoming more compliant with current LBP treatment guidelines.Copyright © 2016 Elsevier Inc. All rights reserved.

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