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Socioeconomic environment and cancer incidence: a French population-based study in Normandy.

Abstract : BACKGROUND: The struggle against social inequalities is a priority for many international organizations. The objective of the study was to quantify the cancer burden related to social deprivation by identifying the cancer sites linked to socioeconomic status and measuring the proportion of cases associated with social deprivation. METHODS: The study population comprised 68 967 cases of cancer diagnosed between 1997 and 2009 in Normandy and collected by the local registries. The social environment was assessed at an aggregated level using the European Deprivation Index (EDI). The association between incidence and socioeconomic status was assessed by a Bayesian Poisson model and the excess of cases was calculated with the Population Attributable Fraction (PAF). RESULTS: For lung, lips-mouth-pharynx and unknown primary sites, a higher incidence in deprived was observed for both sexes. The same trend was observed in males for bladder, liver, esophagus, larynx, central nervous system and gall-bladder and in females for cervix uteri. The largest part of the incidence associated with deprivation was found for cancer of gall-bladder (30.1%), lips-mouth-pharynx (26.0%), larynx (23.2%) and esophagus (19.6%) in males and for unknown primary sites (18.0%) and lips-mouth-pharynx (12.7%) in females. For prostate cancer and melanoma in males, the sites where incidence increased with affluence, the part associated with affluence was respectively 9.6% and 14.0%. CONCLUSIONS: Beyond identifying cancer sites the most associated with social deprivation, this kind of study points to health care policies that could be undertaken to reduce social inequalities.
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Submitted on : Thursday, February 20, 2014 - 9:06:04 PM
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Josephine Bryere, Olivier Dejardin, Veronique Bouvier, Marc Colonna, Anne-Valérie Guizard, et al.. Socioeconomic environment and cancer incidence: a French population-based study in Normandy.. BMC Cancer, BioMed Central, 2014, 14 (1), pp.87. ⟨10.1186/1471-2407-14-87⟩. ⟨inserm-00950127⟩

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