Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia

Background: In a cohort of goldminers, we estimated cancer mortality and incidence, for both surface and underground workers, and we examined the hypothesis that (underground) mining may be protective against prostate cancer.Methods: Standardised mortality and incidence ratios (SMRs and SIRs) and 95...

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Main Authors: Peters, S., Reid, Alison, Fritschi, Lin, Musk, A., de Klerk, N.
Format: Journal Article
Published: Nature Publishing Group 2013
Online Access:http://www.bjcancer.com/
http://hdl.handle.net/20.500.11937/16105
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author Peters, S.
Reid, Alison
Fritschi, Lin
Musk, A.
de Klerk, N.
author_facet Peters, S.
Reid, Alison
Fritschi, Lin
Musk, A.
de Klerk, N.
author_sort Peters, S.
building Curtin Institutional Repository
collection Online Access
description Background: In a cohort of goldminers, we estimated cancer mortality and incidence, for both surface and underground workers, and we examined the hypothesis that (underground) mining may be protective against prostate cancer.Methods: Standardised mortality and incidence ratios (SMRs and SIRs) and 95% confidence intervals (CI) were calculated to compare cancer mortality and incidence of former goldminers with that of the general male population. Internal comparisons on duration of underground work were examined using Cox regression.Results: During 52 608 person-years of follow-up among 2294 goldminers, 1922 deaths were observed. For any cancer, mortality was increased for the total group of miners (SMR¼1.27, 95% CI 1.16–1.39). In the Cox models, lung cancer mortality and incidence were particularly increased among underground miners, even after adjustment for smoking. The SMR for prostate cancer suggested a lower risk for underground miners, whereas incidence of prostate cancer was significantly increased (SIR¼1.31, 95%CI 1.07–1.60) among underground miners.Conclusion: Overall cancer mortality and incidence was higher among Western Australian goldminers compared with the general male population, particularly for underground mining. This study does not support the hypothesis that miners have a decreased risk of prostate cancer.
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spelling curtin-20.500.11937-161052017-02-28T01:26:06Z Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia Peters, S. Reid, Alison Fritschi, Lin Musk, A. de Klerk, N. Background: In a cohort of goldminers, we estimated cancer mortality and incidence, for both surface and underground workers, and we examined the hypothesis that (underground) mining may be protective against prostate cancer.Methods: Standardised mortality and incidence ratios (SMRs and SIRs) and 95% confidence intervals (CI) were calculated to compare cancer mortality and incidence of former goldminers with that of the general male population. Internal comparisons on duration of underground work were examined using Cox regression.Results: During 52 608 person-years of follow-up among 2294 goldminers, 1922 deaths were observed. For any cancer, mortality was increased for the total group of miners (SMR¼1.27, 95% CI 1.16–1.39). In the Cox models, lung cancer mortality and incidence were particularly increased among underground miners, even after adjustment for smoking. The SMR for prostate cancer suggested a lower risk for underground miners, whereas incidence of prostate cancer was significantly increased (SIR¼1.31, 95%CI 1.07–1.60) among underground miners.Conclusion: Overall cancer mortality and incidence was higher among Western Australian goldminers compared with the general male population, particularly for underground mining. This study does not support the hypothesis that miners have a decreased risk of prostate cancer. 2013 Journal Article http://hdl.handle.net/20.500.11937/16105 http://www.bjcancer.com/ Nature Publishing Group restricted
spellingShingle Peters, S.
Reid, Alison
Fritschi, Lin
Musk, A.
de Klerk, N.
Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia
title Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia
title_full Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia
title_fullStr Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia
title_full_unstemmed Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia
title_short Cancer Incidence and Mortality Among Underground and Surface Goldminers in Western Australia
title_sort cancer incidence and mortality among underground and surface goldminers in western australia
url http://www.bjcancer.com/
http://hdl.handle.net/20.500.11937/16105