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    Are there risk factors for scleroderma-related calcinosis?

    • Authors:
    • Sneha Pai
      Englewood Hospital and Medical Center
      Vivien Hsu
      Rutgers-Robert Wood Johnson Medical School
    Mod Rheumatol 2017 Jul 19:1-5. Epub 2017 Jul 19.
    b Department of Medicine, Division of Rheumatology and Connective Tissue Research , Rutgers-Robert Wood Johnson Medical School , New Brunswick , NJ , USA.
    Objectives: Pathogenesis and risk factors of scleroderma associated calcinosis is poorly understood and there is no effective treatment. This study was performed to better understand the prevalence and clinical features associated with calcinosis in a cohort of SSc outpatients.

    Methods: In this cross-sectional study, we compared clinical characteristics of SSc patients with (SSc-calcinosis) and without calcinosis (SSc-control) seen in the outpatient Rutgers-RWJ Scleroderma Program between 2012 and 2015. Our analysis included clinical characteristics, comorbidities (i.e. osteoporosis), autoantibodies and imaging results. We performed univariable and multivariable regression analyses to determine common factors associated with calcinosis.

    Results: There were 215 SSc patients, including 65 SSc-calcinosis (81.5% females) and 150 SSc-without calcinosis (controls, 77% females). SSc-calcinosis patients were older (p = .026) with significantly longer disease duration (20 ± 10.5 years versus 12 ± 8 years, p < .0001). Limited cutaneous scleroderma was more common (54%) in the calcinosis group. Longer disease duration from non-Raynaud symptoms (OR 3.77; 95%CI 1.26, 11.27) and osteoporosis (OR 3.43; 95%CI 1.15, 10.36) remained independently associated with calcinosis.

    Conclusions: Calcinosis was common in both limited and diffuse systemic sclerosis; both longer disease duration and osteoporosis were independently associated with calcinosis. Prospective studies are needed to confirm our findings.
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