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Adipose tissue concentrations of persistent organic pollutants and total cancer risk in an adult cohort from Southern Spain: preliminary data from year 9 of the follow-up.

Abstract
There is an increasing trend in the incidence of cancer worldwide, and it has been accepted that environmental factors account for an important proportion of the global burden. The present paper reports preliminary findings on the influence of the historical exposure to a group of persistent organic pollutants on total cancer risk, at year 9 in the follow-up of a cohort from Southern Spain. A cohort of 368 participants (median age 51 years) was recruited in 2003. Their historical exposure was estimated by analyzing residues of persistent organic pollutants in adipose tissue. Estimation of cancer incidence was based on data from a population-based cancer registry. Statistical analyses were performed using multivariable Cox-regression models. In males, PCB 153 concentrations were positively associated with total cancer risk, with an adjusted hazard ratio (95% confidence interval) of 1.20 (1.01-1.41) for an increment of 100 ng/g lipid. Our preliminary findings suggest a potential relationship between the historical exposure to persistent organic pollutants and the risk of cancer in men. However, these results should be interpreted with caution and require verification during the future follow-up of this cohort.
AuthorsJuan P Arrebola, Mariana F Fernández, Piedad Martín-Olmedo, José Manuel Molina-Molina, María J Sánchez-Pérez, Emilio Sánchez-Cantalejo, Elena Molina-Portillo, José Expósito, Jens Peter Bonde, Nicolás Olea
JournalThe Science of the total environment (Sci Total Environ) Vol. 500-501 Pg. 243-9 (Dec 1 2014) ISSN: 1879-1026 [Electronic] Netherlands
PMID25217999 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
CopyrightCopyright © 2014 Elsevier B.V. All rights reserved.
Chemical References
  • Environmental Pollutants
  • Hazardous Substances
Topics
  • Adipose Tissue (metabolism)
  • Adult
  • Environmental Exposure (analysis, statistics & numerical data)
  • Environmental Pollutants (metabolism)
  • Follow-Up Studies
  • Hazardous Substances (metabolism)
  • Humans
  • Male
  • Middle Aged
  • Neoplasms (epidemiology)
  • Regression Analysis
  • Spain (epidemiology)

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