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Molinie F.,Registre des Cancers de Loire Atlantique Vendee | Vanier A.,University Pierre and Marie Curie | Vanier A.,Hopitaux Universitaires Pitie Salpetriere Charles Foix | Vanier A.,University of Nantes | And 9 more authors.
Breast Cancer Research and Treatment | Year: 2014

The objective of this work was to detail the incidence and mortality trends of invasive and in situ breast cancer (BC) in France, especially regarding the development of screening, over the 1990-2008 period. Data issued from nine population-based cancer registries were studied. The incidence of invasive BC increased annually by 0.8 % from 1990 to 1996 and more markedly by 3.2 % from 1996 to 2003, and then sharply decreased until 2006 (-2.3 % per year), especially among women aged 50-69 years (-4.9 % per year). This trend was similar whatever the introduction date of the organized screening (OS) program in the different areas. The incidence of ductal carcinoma in situ steadily increased between 1990 and 2005, particularly among women aged 50-69 years and 70 and older. At the same time, the mortality from BC decreased annually by 1.1 % over the entire study period. This decrease was more pronounced in women aged 40-49 and 50-69 and, during the 1990-1999 period, in the areas where OS began in 1989-1991. The similarity in the incidence trends for all periods of implementation of OS in the different areas was striking. This suggests that OS alone does not explain the changes observed in incidence rate. Our study highlights the importance of closely monitoring the changes in incidence and mortality indicators, and of better understanding the factors causing variation. © 2014 Springer Science+Business Media.

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