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Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study

OBJECTIVES: Previous studies on firefighters indicate an increased risk of cancer although findings regarding which cancer sites are in excess have been inconsistent. The aim of this study was to investigate the cancer incidence among Swedish firefighters. METHODS: This updated cohort study included...

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Autores principales: Kullberg, Cecilia, Andersson, Tomas, Gustavsson, Per, Selander, Jenny, Tornling, Göran, Gustavsson, Annika, Bigert, Carolina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5845066/
https://www.ncbi.nlm.nih.gov/pubmed/29164319
http://dx.doi.org/10.1007/s00420-017-1276-1
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author Kullberg, Cecilia
Andersson, Tomas
Gustavsson, Per
Selander, Jenny
Tornling, Göran
Gustavsson, Annika
Bigert, Carolina
author_facet Kullberg, Cecilia
Andersson, Tomas
Gustavsson, Per
Selander, Jenny
Tornling, Göran
Gustavsson, Annika
Bigert, Carolina
author_sort Kullberg, Cecilia
collection PubMed
description OBJECTIVES: Previous studies on firefighters indicate an increased risk of cancer although findings regarding which cancer sites are in excess have been inconsistent. The aim of this study was to investigate the cancer incidence among Swedish firefighters. METHODS: This updated cohort study included 1080 men who worked at least 1 year as a firefighter in the city of Stockholm, Sweden during 1931–1983. First-time diagnoses of cancer were identified through the Swedish Cancer Registry from 1958 until 2012. Employment as a firefighter was determined from the annual fire station enrolment records. Standardized incidence ratios were calculated using the Stockholm population as reference. RESULTS: Firefighters in Stockholm had a low overall risk of cancer (SIR = 0.81 95% CI 0.71–0.91). However, firefighters were at an increased risk of stomach cancer (SIR = 1.89 95% CI 1.25–2.75). Firefighters had significantly low risks for prostate cancer (SIR = 0.68 95% CI 0.52–0.87) and malignant melanoma of the skin (SIR = 0.30 95% CI 0.06–0.88). There was a statistically significant trend of increasing overall risk of cancer with increasing employment duration, although there was still no excess of cancer overall in any of the categories of employment duration. CONCLUSION: Stockholm firefighters had an increased risk of stomach cancer but a low overall risk of cancer. The trend of increasing overall risk of cancer with increasing employment duration could potentially be related to the carcinogenic exposures at work.
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spelling pubmed-58450662018-03-19 Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study Kullberg, Cecilia Andersson, Tomas Gustavsson, Per Selander, Jenny Tornling, Göran Gustavsson, Annika Bigert, Carolina Int Arch Occup Environ Health Original Article OBJECTIVES: Previous studies on firefighters indicate an increased risk of cancer although findings regarding which cancer sites are in excess have been inconsistent. The aim of this study was to investigate the cancer incidence among Swedish firefighters. METHODS: This updated cohort study included 1080 men who worked at least 1 year as a firefighter in the city of Stockholm, Sweden during 1931–1983. First-time diagnoses of cancer were identified through the Swedish Cancer Registry from 1958 until 2012. Employment as a firefighter was determined from the annual fire station enrolment records. Standardized incidence ratios were calculated using the Stockholm population as reference. RESULTS: Firefighters in Stockholm had a low overall risk of cancer (SIR = 0.81 95% CI 0.71–0.91). However, firefighters were at an increased risk of stomach cancer (SIR = 1.89 95% CI 1.25–2.75). Firefighters had significantly low risks for prostate cancer (SIR = 0.68 95% CI 0.52–0.87) and malignant melanoma of the skin (SIR = 0.30 95% CI 0.06–0.88). There was a statistically significant trend of increasing overall risk of cancer with increasing employment duration, although there was still no excess of cancer overall in any of the categories of employment duration. CONCLUSION: Stockholm firefighters had an increased risk of stomach cancer but a low overall risk of cancer. The trend of increasing overall risk of cancer with increasing employment duration could potentially be related to the carcinogenic exposures at work. Springer Berlin Heidelberg 2017-11-21 2018 /pmc/articles/PMC5845066/ /pubmed/29164319 http://dx.doi.org/10.1007/s00420-017-1276-1 Text en © The Author(s) 2017 Open AccessThis article is 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, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Article
Kullberg, Cecilia
Andersson, Tomas
Gustavsson, Per
Selander, Jenny
Tornling, Göran
Gustavsson, Annika
Bigert, Carolina
Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study
title Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study
title_full Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study
title_fullStr Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study
title_full_unstemmed Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study
title_short Cancer incidence in Stockholm firefighters 1958–2012: an updated cohort study
title_sort cancer incidence in stockholm firefighters 1958–2012: an updated cohort study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5845066/
https://www.ncbi.nlm.nih.gov/pubmed/29164319
http://dx.doi.org/10.1007/s00420-017-1276-1
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