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Body mass index and risk for clinical lumbar spinal stenosis: a cohort study
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
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2015 (English)In: Spine, ISSN 0362-2436, E-ISSN 1528-1159, Vol. 40, no 18, 1451-1456 p.Article in journal (Refereed) Published
Abstract [en]

STRUCTURED ABSTRACT: Study Design. A prospective cohort study that used a Swedish nationwide occupational surveillance program for construction workers (period of registration from 1971-1992). In all, 364 467 participants (mean age at baseline 34 years) were included in the study.

OBJECTIVE: To determine whether overweight and obesity are associated with a higher risk of lumbar spinal stenosis (LSS).

SUMMARY OF BACKGROUND DATA: During recent decades, LSS has become the most common indication for spine surgery, a change that coincides with a higher prevalence of obesity.

METHODS: A diagnosis of LSS was collected through individual linkage to the Swedish National Patient Register through December 31, 2011. Poisson regression models were employed to estimate multivariable-adjusted incidence rate ratios (IRRs) for LSS.

RESULTS: At baseline, 65% had normal weight (BMI 18.5 to 24.99 kg/m), 29% were overweight (BMI 25 to 29.99 kg/m), 5% were obese (BMI≥30 kg/m) and 2% were underweight (BMI<18.5 kg/m). During 11,190,944 person-years of follow-up, with a mean of 31 years, 2381 participants were diagnosed with LSS. Compared with normal weight individuals, obese workers had an IRR of 2.18 (95% confidence interval (CI), 1.87 to 2.53) for LSS and overweight workers had an IRR of 1.68 (95% CI, 1.54 to 1.83). Workers who were underweight halved their risk of LSS (IRR 0.52, 95% CI 0.30 to 0.90).

CONCLUSION: Obese and overweight persons are at a higher risk of developing LSS. Further, our results indicate that obesity might be a novel explanation for the increased number of patients with clinical LSS.

Place, publisher, year, edition, pages
2015. Vol. 40, no 18, 1451-1456 p.
Keyword [en]
Bygghälsan, BMI, body mass index, cohort study, LSS, lumbar spinal stenosis, obesity, overweight, spine surgery
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:umu:diva-108532DOI: 10.1097/BRS.0000000000001038ISI: 000361107100009PubMedID: 26165225OAI: oai:DiVA.org:umu-108532DiVA: diva2:853430
Available from: 2015-09-14 Created: 2015-09-14 Last updated: 2017-12-04Bibliographically approved

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