Prescription Dispensing Patterns Before and After a Workers' Compensation Claim: An Historical Cohort Study of Workers With Low Back Pain Injuries in British Columbia

Journal of Occupational and Environmental Medicine
Nancy CarnideMieke Koehoorn

Abstract

Compare prescription dispensing before and after a work-related low back injury. Descriptive analyses were used to describe opioid, nonsteroidal anti-inflammatory drug (NSAID), and skeletal muscle relaxant (SMR) dispensing 1 year pre- and post-injury among 97,124 workers in British Columbia with new workers' compensation low back claims from 1998 to 2009. Before injury, 19.7%, 21.2%, and 6.3% were dispensed opioids, NSAIDs, and SMRs, respectively, increasing to 39.0%, 50.2%, and 28.4% after. Median time to first post-injury prescription was less than a week. Dispensing was stable pre-injury, followed by a sharp increase within 8 weeks post-injury. Dispensing dropped thereafter, but remained elevated nearly a year post-injury, an increase attributable to less than 2% of claimants. These drug classes are commonly dispensed, particularly shortly after injury and dispensing is of short duration for most, though a small subgroup receives prolonged courses.

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Citations

Jul 28, 2019·American Journal of Industrial Medicine·Devan HawkinsLetitia Davis
Sep 15, 2020·Journal of Occupational and Environmental Medicine·Xiuwen Sue DongSamantha Brown
Sep 12, 2020·The Journal of Allergy and Clinical Immunology·Lily LiTanya M Laidlaw

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