{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T08:14:26Z","timestamp":1791101666505,"version":"4.1.0"},"reference-count":19,"publisher":"BMJ","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Occup Environ Med"],"accepted":{"date-parts":[[2009,12,1]]},"published-print":{"date-parts":[[2010,8]]},"abstract":"<jats:sec>\n                  <jats:title>Objectives<\/jats:title>\n                  <jats:p>Lung cancer caused by radon in miners is a well-known risk. However, the risk estimates vary between studies and between mines. We have studied the dose response\u2013relationship in a Swedish iron ore mine where two other studies have previously reached different risk estimates. As this mine has relatively low radon levels, the results are highly relevant for risk estimation in non-uranium underground mines.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A new cohort of 5486 male workers employed from 1923 to 1996 was established. Cumulative radon exposures were assessed based on a large number of measurements, including reconstructions of historical conditions. 122 lung cancer cases occurred during the follow-up period of 1958\u20132000.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>The average cumulative exposure in underground workers was 32\u2005kBq\u2002year\/m<jats:sup>3<\/jats:sup> (65\u2005working level months (WLM)), experienced over 14.6\u2005years. The excess RR (ERR) per kBq\u2002year\/m<jats:sup>3<\/jats:sup> was 0.046 (95% CI 0.015 to 0.077; 0.022 ERR\/WLM). Confounding by quartz may affect these results but appears to account only for 10\u201320% of the risk. The results for squamous cell and small cell lung cancer were 0.049 and 0.072, respectively. However, no increased risk was observed for adenocarcinoma (0.000 ERR per kBq\u2002year\/m<jats:sup>3<\/jats:sup>, 95% CI \u22120.017 to 0.017).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Our overall risk estimate is about half of that found in the first Malmberget study but twice that found in the same cohort in the previously published pooled analysis. Radon did not increase the risk for adenocarcinoma in the lung.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1136\/oem.2009.047449","type":"journal-article","created":{"date-parts":[[2010,7,20]],"date-time":"2010-07-20T12:51:05Z","timestamp":1279630265000},"page":"519-525","source":"Crossref","is-referenced-by-count":24,"title":["Lung cancer risk and radon exposure in a cohort of iron ore miners in Malmberget, Sweden"],"prefix":"10.1136","volume":"67","author":[{"given":"H\u00e5kan","family":"Jonsson","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ingvar A","family":"Bergdahl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gustav","family":"\u00c5kerblom","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K\u00e5re","family":"Eriksson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kurt","family":"Andersson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leif","family":"K\u00e5gstr\u00f6m","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bengt","family":"J\u00e4rvholm","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lena","family":"Damber","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2010,7,20]]},"reference":[{"key":"2025081305544930000_67.8.519.1","unstructured":"Beir VI . Health effects of exposure to radon. Washington, DC: National Academy Press, 1999."},{"key":"2025081305544930000_67.8.519.2","doi-asserted-by":"publisher","DOI":"10.1093\/jnci\/87.11.817"},{"key":"2025081305544930000_67.8.519.3","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM198406073102302"},{"key":"2025081305544930000_67.8.519.4","unstructured":"Swent LW Chambers DB . Comments to the U.S. mine safety and health administration for the American mining congress by Langan W. Swent and Douglas B. Chambers on their visit to the Malmberget mines of LKAB, in northern Sweden, and their investigation of exposure of miners to radon daughters in these mines. Washington DC: American Mining Congress, 1985."},{"key":"2025081305544930000_67.8.519.5","unstructured":"Bergdahl IA \u00c5kerblom G Andersson K . Radon exposure in the mines in Kiruna and Malmberget during the 2000th century. (In Swedish). Sweden: Oncological Centre, Ume\u00e5 University, 2003."},{"key":"2025081305544930000_67.8.519.6","unstructured":"Bergdahl IA \u00c5kerblom G Jonsson H . Radon in underground mines\u2014validity of historical data in asessment of past exposure. X2001-Exposure asessment in epidemiology and practice. Bromma, Sweden: National institute for working life, 2001:147\u20139."},{"key":"2025081305544930000_67.8.519.7","unstructured":"\u00c5kerblom G Lind\u00e9n A . Predicting the radon concentration in a deep nuclear wast reposity. the third ICRGG international colloquium. Amritsar, India: Guru Nanak dev University, 1996. Amritsar-14005."},{"key":"2025081305544930000_67.8.519.8","doi-asserted-by":"crossref","unstructured":"Bergdahl IA Jonsson H Eriksson K . Lung cancer and exposure to quartz and diesel exhausts in Swedish iron-ore miners with concurrent exposure to radon. Occup Environ Med 2010. 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