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Mapping Variation in Breast Cancer Screening Where to Intervene?

Abstract : Small geographic areas with lower mammography screening participation rates may reflect gaps in screening efforts. Our objective was to use spatial analyses to understand disparities in mammography screening use and to identify factors to increase its uptake in areas that need it in Lyon metropolitan area, France. Data for screened women between the ages of 50 and 74 were analyzed. Census blocks of screened and non screened women were extracted from the mammography screening programme 2015-2016 dataset. We used spatial regression models, within a generalized additive framework to determine clusters of census blocks with significantly higher prevalence of non-participation of mammography screening. Smoothed risk maps were crude and adjusted on the following covariates: deprivation index and opportunistic screening. Among 178,002 women aged 50 to 74, 49.9% received mammography screening. As hypothesized, women living in highly deprived census blocks had lower participation rates compared to less deprived blocks, 45.2% vs. 51.4% p < 0.001. Spatial analyses identified four clusters, one located in an urban area and three in suburban areas. Moreover, depending on the location of the cluster, the influence came from different variables. Knowing the impact of site-specific risk factors seems to be important for implementing an appropriate prevention intervention.
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Submitted on : Friday, July 10, 2020 - 3:47:50 PM
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Cindy Padilla, François Painblanc, Patricia Soler-Michel, Veronica M Vieira. Mapping Variation in Breast Cancer Screening Where to Intervene?. International Journal of Environmental Research and Public Health, MDPI, 2019, 16 (13), pp.E2274. ⟨10.3390/ijerph16132274⟩. ⟨hal-02180024⟩



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