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Exposure to Occupational Inhalants and the Risk of Developing Rheumatoid Arthritis: A Systematic Review and
Qianwen Liu1, Xin Song2, Emily Mauro3
1Department of Clinical Neuroscience, Karolinska Institutet, and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden.
Occupational inhalant exposure, including silica and asbestos, is linked to a higher risk of developing rheumatoid arthritis (RA). This highlights the need for workplace safety measures to prevent RA.
Area of Science:
- Rheumatology
- Occupational Health
- Environmental Medicine
Background:
- Rheumatoid arthritis (RA) is a chronic autoimmune disease with known risk factors like smoking.
- The impact of occupational inhalant exposure on RA development is less understood.
- This study addresses the gap in knowledge regarding workplace inhalants and RA risk.
Purpose of the Study:
- To systematically review and synthesize evidence on the association between occupational inhalant exposure and rheumatoid arthritis (RA) risk.
- To quantify the risk of RA associated with various occupational inhalants.
- To inform workplace prevention strategies and future research.
Main Methods:
- A systematic review and meta-analysis adhering to PRISMA guidelines.
- Searched Medline, Embase, and Web of Science databases.
- Included population-based cross-sectional, case-control, and cohort studies with reliable RA ascertainment and exposure data.
Main Results:
- Twenty-five studies involving 10 types of occupational inhalants were meta-analyzed.
- Significant RA risk increases (RR 1.25-1.49) were found for silica, asbestos, solvents, pesticides, fertilizers, animal dust, and engine exhaust.
- Moderate to high heterogeneity was noted in seven meta-analyses.
Conclusions:
- Occupational inhalant exposures are associated with an elevated risk of rheumatoid arthritis.
- Workplace prevention strategies are crucial for mitigating RA risk.
- Further research into the biological mechanisms linking inhalants to RA is warranted.
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