{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,25]],"date-time":"2026-04-25T09:49:36Z","timestamp":1777110576265,"version":"3.51.4"},"reference-count":14,"publisher":"BMJ","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Occup Environ Med"],"published-print":{"date-parts":[[2001,5,1]]},"abstract":"<jats:sec><jats:title>OBJECTIVE<\/jats:title><jats:p>To investigate whether risks of leukaemia are related to occupational exposure to magnetic fields.<\/jats:p><\/jats:sec><jats:sec sec-type=\"methods\"><jats:title>METHODS<\/jats:title><jats:p>The mortality experienced by a cohort of 83\u2009997 employees of the former Central Electricity Generating Board of England and Wales was investigated for the period 1973\u201397. All employees were employed for at least 6 months with some employment in the period 1973\u201382. Computerised work histories were available for 79\u2009972 study subjects for the period 1971\u201393. Detailed calculations were performed by others to enable a novel assessment to be made of exposures to magnetic fields. Two analytical approaches were used, indirect standardisation (n=83\u2009997) and Poisson regression (n=79\u2009972).<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>Based on serial mortalities for England and Wales, the standardised mortality ratio of 84 for all leukaemias (observed 111, expected 132.3) was similar to that of 83 for all causes (observed 14\u2009845, expected 17\u2009918). No significant positive trends were found for the risks of various types of leukaemia (chronic lymphatic leukaemia, acute myeloid leukaemia, chronic myeloid leukaemia, all leukaemia) either with lifetime cumulative exposure to magnetic fields or with such exposures received in the most recent 5 years.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>There are no discernible excess risks of leukaemia as a consequence of occupational exposure to magnetic fields in United Kingdom electricity generation and transmission workers.<\/jats:p><\/jats:sec>","DOI":"10.1136\/oem.58.5.307","type":"journal-article","created":{"date-parts":[[2002,7,27]],"date-time":"2002-07-27T10:38:40Z","timestamp":1027766320000},"page":"307-314","source":"Crossref","is-referenced-by-count":21,"title":["Leukaemia mortality in relation to magnetic field exposure: findings from a study of United Kingdom electricity generation and transmission workers, 1973\u201397"],"prefix":"10.1136","volume":"58","author":[{"given":"J M","family":"Harrington","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L","family":"Nichols","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T","family":"Sorahan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M","family":"van Tongeren","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2001,5,1]]},"reference":[{"key":"2024052310512760000_58.5.307.1","doi-asserted-by":"crossref","first-page":"249","DOI":"10.1056\/NEJM198207223070412","article-title":"Mortality from leukaemia in workers exposed to electric and magnetic fields.","volume":"307","author":"Milham","year":"1982","journal-title":"N Engl J Med"},{"key":"2024052310512760000_58.5.307.2","first-page":"413","article-title":"Occupational exposure to electromagnetic fields and the occurrence of brain tumours.","volume":"27","author":"Lin","year":"1985","journal-title":"J Occup Med"},{"key":"2024052310512760000_58.5.307.3","doi-asserted-by":"publisher","DOI":"10.1097\/00001648-199303000-00005"},{"key":"2024052310512760000_58.5.307.4","doi-asserted-by":"crossref","unstructured":"Theriault G, Goldberg M, Miller AB, et al. Cancer risks associated with occupational exposure to magnetic fields among electric utility workers in Ontario and Quebec, Canada, and France: 1970\u201389. Am J Epidemiol1994;139:550\u201372..","DOI":"10.1093\/oxfordjournals.aje.a117046"},{"key":"2024052310512760000_58.5.307.5","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1093\/oxfordjournals.aje.a117400","article-title":"Magnetic field exposure in relation to leukaemia and brain cancer mortality among electric utility workers.","volume":"141","author":"Savitz","year":"1995","journal-title":"Am J Epidemiol"},{"key":"2024052310512760000_58.5.307.6","doi-asserted-by":"publisher","DOI":"10.1136\/oem.54.1.7"},{"key":"2024052310512760000_58.5.307.7","doi-asserted-by":"publisher","DOI":"10.1093\/oxfordjournals.aje.a009486"},{"key":"2024052310512760000_58.5.307.8","unstructured":"National Radiological Protection Board (1992) Electromagnetic fields and the risk of cancer: report of an advisory group on non-ionising radiation. (NRPB, Chilton, Oxfordshire) . (Doc NRPB 3 No 1.)."},{"key":"2024052310512760000_58.5.307.9","doi-asserted-by":"publisher","DOI":"10.1097\/00043764-199711000-00008"},{"key":"2024052310512760000_58.5.307.10","unstructured":"National Institute of Environmental Health Sciences (1998) Assessment of health effects from exposure to power-line frequency electric and magnetic fields. Working Group report. (NIEHS, Research Triangle Park, NC, USA)."},{"key":"2024052310512760000_58.5.307.11","unstructured":"Renew DC (2001) A method for assessing occupational exposure to power frequency magnetic field for electricity generation and transmission workers. (National Grid Co, Leatherhead, UK)."},{"key":"2024052310512760000_58.5.307.12","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/15.1.134"},{"key":"2024052310512760000_58.5.307.13","unstructured":"(1988) Epicure. (Hirosoft International Corporation, Seattle, USA)."},{"key":"2024052310512760000_58.5.307.14","unstructured":"Breslow NE Day NE (1987) Statistical methods in cancer research. Vol II - The design and analysis of cohort studies. (International Agency for Research on Cancer, Lyon) . (IARC Sci Publ No 82.)."}],"container-title":["Occupational and Environmental Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/oem.58.5.307","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T18:51:14Z","timestamp":1716490274000},"score":1,"resource":{"primary":{"URL":"https:\/\/oem.bmj.com\/lookup\/doi\/10.1136\/oem.58.5.307"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,5,1]]},"references-count":14,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2001,5,1]]},"published-print":{"date-parts":[[2001,5,1]]}},"alternative-id":["10.1136\/oem.58.5.307"],"URL":"https:\/\/doi.org\/10.1136\/oem.58.5.307","relation":{},"ISSN":["1351-0711","1470-7926"],"issn-type":[{"value":"1351-0711","type":"print"},{"value":"1470-7926","type":"electronic"}],"subject":[],"published":{"date-parts":[[2001,5,1]]}}}