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Meta-Analysis
. 2019 Nov 15;145(10):2639-2646.
doi: 10.1002/ijc.32199. Epub 2019 Mar 1.

Cancer incidence and mortality among firefighters

Hamed Jalilian  1 , Mansour Ziaei  2 , Elisabete Weiderpass  3   4   5   6 , Corina Silvia Rueegg  7 , Yahya Khosravi  8 , Kristina Kjaerheim  4
Affiliations
Meta-Analysis

Cancer incidence and mortality among firefighters

Hamed Jalilian et al. Int J Cancer. .

Abstract

Firefighters are exposed to both known and suspected carcinogens. This study aims to systematically review the literature on the association of firefighting occupation and cancer incidence and mortality, overall and for specific cancer sites. A systematic review using PubMed, Embase, and Web of Science was performed up to January 1, 2018. We extracted risk estimates of cancers and calculated summary incidence risk estimates (SIRE), summary mortality risk estimates (SMRE), and their 95% confidence intervals (CI). Publication bias and risk of bias in individual studies were assessed using Begg's and Egger's tests and the Newcastle-Ottawa scale (NOS), respectively. We included 50 papers in the review and 48 in the meta-analysis. We found significantly elevated SIREs for cancer of the colon (1.14; CI 1.06 to 1.21), rectum (1.09; CI 1.00 to 1.20), prostate (1.15; CI 1.05 to 1.27), testis (1.34; CI 1.08 to 1.68), bladder (1.12; CI 1.04 to 1.21), thyroid (1.22; CI 1.01 to 1.48), pleura (1.60; CI 1.09 to 2.34), and for malignant melanoma (1.21; CI 1.02 to 1.45). We found significant SMREs of 1.36 (1.18 to 1.57) and 1.42 (1.05 to 1.90) for rectal cancer and Non-Hodgkin's lymphoma, respectively. Considering the significantly elevated risk of some cancers in this occupational group, we suggest improving preventive measures and securing adequate and relevant medical attention for this group. Further studies with more accurate and in-depth exposure assessments are indicated.

Keywords: cancer; firefighter; firefighting; meta-analysis; review.

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References

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