Comparison of Compensated Low Back Pain Claims Experience in Australia with Limb Fracture and Non-Specific Limb Conditio
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Comparison of Compensated Low Back Pain Claims Experience in Australia with Limb Fracture and Non‑Specific Limb Condition Claims: A Retrospective Cohort Study Michael Di Donato1 · Rachelle Buchbinder2 · Ross Iles1 · Shannon Gray1 · Alex Collie1
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Objectives To describe the incidence, duration, and patterns of working time loss claims in compensated Australian workers with low back pain (LBP), and compare this with limb fracture (LF) and non-specific limb condition (NSLC) claims. Methods The National Dataset for Compensation-based Statistics was used for this study. Accepted workers’ compensation time loss claims for LBP, LF or NSLC occurring between July 2010 and June 2015 were included. Counts, rates per 10,000 covered workers, the relative risk and median duration of time loss were calculated. Multivariate Cox and quantile regression models were used to determine factors affecting time loss duration and patterns. Results There were 56,102 LBP claims, 42,957 LF claims, and 18,249 NSLC claims. The relative risk of a claim for LBP was significantly greater than LF after adjustment for all covariates (ARR 1.30, 95% CI 1.29–1.32, p years), and sex reported in binary terms (male/female). Australian and New Zealand Classification of Occupations (ANZSCO) major codes were used to define eight major occupation groups [27]. Jurisdiction was defined as the
Journal of Occupational Rehabilitation Fig. 1 Sample selection process and number of included claims. NDS National Dataset of Compensation-based Statistics
National Dataset for Compensation-based Statistics
N = 3,930,846
1 July 2010 to 30 June 2015 n = 1,292,951
Outside study period n = 2,637,895
≥15 to ≤80 years of age n = 1,292,159
Outside age range n = 792
≥1 to ≤100 weekly working hours n = 1,200,042
Unrealistic working hours n = 92,117
Time loss claims only n = 819,263
Medical-only claims n = 380,779
≥2 to ≤365 total weeks time loss n = 458,430
Outside time loss range n = 360,833
Low Back Pain n = 56,102
Excluded conditions: intracranial injuries, wounds, lacerations, amputations, burns, traumatic joint / ligament injury, traumatic muscle / tendon injury, mental diseases, digestive system diseases, skin and subcutaneous tissue diseases, respiratory system diseases, infectious diseases, and neoplasms.
Limb Fractures n = 42,957
Non-Specific Limb Conditions n = 18,249
workers’ compensation jurisdiction in which the claim was accepted. Socioeconomic status was defined by the Index of Relative Socioeconomic Advantage and Disadvantage
(IRSAD) [28, 29]. As per previous analyses, the middle three quintiles were collapsed, with the most advantaged and most disadvantaged quintiles at either extreme [26].
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Accessibility/Remoteness Index of Australia (ARIA) provided five categories of remoteness [28, 30]. Finally, workers were classified as full-time if they worked ≥ 35 h per week, or part-time otherwise. Portions of the IRSAD (8.54%), ARIA (8.43%), and ANZSCO (0.39%) vari
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