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Eur J Cancer. 2009 Jun;45(9):1624-9. doi: 10.1016/j.ejca.2008.12.024. Epub 2009 Jan 27.

Geographical analysis of thyroid cancer in young people from northern England: evidence for a sustained excess in females in Cumbria.

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  • 1Institute of Health and Society, Newcastle University, Sir James Spence Institute, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, United Kingdom.

Abstract

A previous study found a thyroid cancer excess in Cumbria following the Chernobyl explosion, but did not analyse sex-specific effects. This study examines sex differences in the incidence of thyroid cancer. Ninety-five primary thyroid carcinomas (69 females, 26 males) diagnosed in those aged 0-24 during 1968-2005 were identified from the Northern Region Young Persons' Malignant Disease Registry. Age-standardised incidence rates (ASRs), rate ratios (RRs) and 95% confidence intervals (CIs) were calculated. For males, the ASR was 0.6 per million person-years during the pre-Chernobyl period (1968-1986), and was 1.8 per million person-years during the post-Chernobyl period (1987-2005). For females, the ASR was 2.4 pre-Chernobyl and was 3.9 post-Chernobyl. The previously noted excess in Cumbria was entirely confined to females (Cumbrian females: RR for post-Chernobyl compared with pre-Chernobyl=10.8; 95% CI: 1.4-85.3). These findings may be consistent with sex-specific differences in susceptibility to an environmental exposure, such as fallout from the Chernobyl nuclear accident.

PMID:
19179067
[PubMed - indexed for MEDLINE]
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