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Association Between Obesity and Sarcoidosis: A Systematic Review and Meta-analysis

Received: 7 August 2020    Accepted: 28 August 2020    Published: 7 September 2020
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Abstract

Background: Sarcoidosis is a systemic inflammatory disease characterized by epithelioid granuloma formation in various organs. The etiology of sarcoidosis is unknown. Several studies report an increased risk of sarcoidosis in obese patients. The purpose of this study is to conduct a systematic review to assess the risk of sarcoidosis in obese or overweight patients, and to provide a population-based estimate of the risk of sarcoidosis in obese and overweight individuals. Methods: Using the Preferred Reporting Items for Systematic Review and Meta-analysis Protocols (PRISMA) guidelines, we conducted a comprehensive search of studies (Randomized control trial (RCT), cohort or case-control) studies that estimated the risk of sarcoidosis with body mass index (BMI) between 2009-2019 using keywords and MESH terms related to obesity and sarcoidosis. The search was conducted in MEDLINE, EBSCO, and CINAHL. Three independent investigators reviewed each article and assessed for bias. Data was extracted from each study that met inclusion criteria. Quantitative analysis was performed using Review Manager 5.3 software. Results: An initial search yielded 77 potential articles; 73 articles did not meet inclusion criteria and 4 were included in the final analysis. The pooled risk estimate for the incidence of sarcoidosis in obese and overweight individuals was 1.68 [95% confidence interval 1.5-1.87] with a significant statistical heterogeneity, I2 of 92%. Conclusion: From our systematic review, obese and overweight individuals have a 68% (RR 1.68, 95% CI 1.50 to 1.87) increased risk of developing sarcoidosis in comparison with normal or underweight individuals. More studies are needed to further evaluate the role of obesity in the etiopathogenesis of sarcoidosis.

Published in American Journal of Internal Medicine (Volume 8, Issue 5)

This article belongs to the Special Issue Occupational and Environmental Lung Diseases: The Emergency Global Health Threats

DOI 10.11648/j.ajim.20200805.18
Page(s) 237-245
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Sarcoidosis, Obesity, Pulmonary

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    David Wainaina Wambui, Ogugua Ndili Obi, Gregory Dale Kearney. (2020). Association Between Obesity and Sarcoidosis: A Systematic Review and Meta-analysis. American Journal of Internal Medicine, 8(5), 237-245. https://doi.org/10.11648/j.ajim.20200805.18

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    David Wainaina Wambui; Ogugua Ndili Obi; Gregory Dale Kearney. Association Between Obesity and Sarcoidosis: A Systematic Review and Meta-analysis. Am. J. Intern. Med. 2020, 8(5), 237-245. doi: 10.11648/j.ajim.20200805.18

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    David Wainaina Wambui, Ogugua Ndili Obi, Gregory Dale Kearney. Association Between Obesity and Sarcoidosis: A Systematic Review and Meta-analysis. Am J Intern Med. 2020;8(5):237-245. doi: 10.11648/j.ajim.20200805.18

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  • @article{10.11648/j.ajim.20200805.18,
      author = {David Wainaina Wambui and Ogugua Ndili Obi and Gregory Dale Kearney},
      title = {Association Between Obesity and Sarcoidosis: A Systematic Review and Meta-analysis},
      journal = {American Journal of Internal Medicine},
      volume = {8},
      number = {5},
      pages = {237-245},
      doi = {10.11648/j.ajim.20200805.18},
      url = {https://doi.org/10.11648/j.ajim.20200805.18},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajim.20200805.18},
      abstract = {Background: Sarcoidosis is a systemic inflammatory disease characterized by epithelioid granuloma formation in various organs. The etiology of sarcoidosis is unknown. Several studies report an increased risk of sarcoidosis in obese patients. The purpose of this study is to conduct a systematic review to assess the risk of sarcoidosis in obese or overweight patients, and to provide a population-based estimate of the risk of sarcoidosis in obese and overweight individuals. Methods: Using the Preferred Reporting Items for Systematic Review and Meta-analysis Protocols (PRISMA) guidelines, we conducted a comprehensive search of studies (Randomized control trial (RCT), cohort or case-control) studies that estimated the risk of sarcoidosis with body mass index (BMI) between 2009-2019 using keywords and MESH terms related to obesity and sarcoidosis. The search was conducted in MEDLINE, EBSCO, and CINAHL. Three independent investigators reviewed each article and assessed for bias. Data was extracted from each study that met inclusion criteria. Quantitative analysis was performed using Review Manager 5.3 software. Results: An initial search yielded 77 potential articles; 73 articles did not meet inclusion criteria and 4 were included in the final analysis. The pooled risk estimate for the incidence of sarcoidosis in obese and overweight individuals was 1.68 [95% confidence interval 1.5-1.87] with a significant statistical heterogeneity, I2 of 92%. Conclusion: From our systematic review, obese and overweight individuals have a 68% (RR 1.68, 95% CI 1.50 to 1.87) increased risk of developing sarcoidosis in comparison with normal or underweight individuals. More studies are needed to further evaluate the role of obesity in the etiopathogenesis of sarcoidosis.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Association Between Obesity and Sarcoidosis: A Systematic Review and Meta-analysis
    AU  - David Wainaina Wambui
    AU  - Ogugua Ndili Obi
    AU  - Gregory Dale Kearney
    Y1  - 2020/09/07
    PY  - 2020
    N1  - https://doi.org/10.11648/j.ajim.20200805.18
    DO  - 10.11648/j.ajim.20200805.18
    T2  - American Journal of Internal Medicine
    JF  - American Journal of Internal Medicine
    JO  - American Journal of Internal Medicine
    SP  - 237
    EP  - 245
    PB  - Science Publishing Group
    SN  - 2330-4324
    UR  - https://doi.org/10.11648/j.ajim.20200805.18
    AB  - Background: Sarcoidosis is a systemic inflammatory disease characterized by epithelioid granuloma formation in various organs. The etiology of sarcoidosis is unknown. Several studies report an increased risk of sarcoidosis in obese patients. The purpose of this study is to conduct a systematic review to assess the risk of sarcoidosis in obese or overweight patients, and to provide a population-based estimate of the risk of sarcoidosis in obese and overweight individuals. Methods: Using the Preferred Reporting Items for Systematic Review and Meta-analysis Protocols (PRISMA) guidelines, we conducted a comprehensive search of studies (Randomized control trial (RCT), cohort or case-control) studies that estimated the risk of sarcoidosis with body mass index (BMI) between 2009-2019 using keywords and MESH terms related to obesity and sarcoidosis. The search was conducted in MEDLINE, EBSCO, and CINAHL. Three independent investigators reviewed each article and assessed for bias. Data was extracted from each study that met inclusion criteria. Quantitative analysis was performed using Review Manager 5.3 software. Results: An initial search yielded 77 potential articles; 73 articles did not meet inclusion criteria and 4 were included in the final analysis. The pooled risk estimate for the incidence of sarcoidosis in obese and overweight individuals was 1.68 [95% confidence interval 1.5-1.87] with a significant statistical heterogeneity, I2 of 92%. Conclusion: From our systematic review, obese and overweight individuals have a 68% (RR 1.68, 95% CI 1.50 to 1.87) increased risk of developing sarcoidosis in comparison with normal or underweight individuals. More studies are needed to further evaluate the role of obesity in the etiopathogenesis of sarcoidosis.
    VL  - 8
    IS  - 5
    ER  - 

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Author Information
  • Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, USA

  • Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Brody School of Medicine, East Carolina University, Greenville, USA

  • Department of Public Health, Brody School of Medicine, East Carolina University, Greenville, USA

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