The purpose of this study was to examine trends in incidence and detection of ductal carcinoma in situ (DCIS) of the breast in southern Netherlands in the period 1984-2006 and assess the effect of mass screening. All patients with primary DCIS registered between 1984 and 2006 in the population-based Eindhoven Cancer Registry were included (n = 1,767). These data were linked to data from the population-based screening programme. The incidence of DCIS of the breast increased from 3/100,000 to almost 34/100,000 person-years in women aged 50-69 years in southern Netherlands since 1984. Mass screening was responsible for this increase. A stable 60% of DCIS was screen-detected. Over 11% of breast cancer patients have DCIS. In conclusion, the incidence of DCIS increased markedly in southern Netherlands with a clear effect of mammography screening since 1992.

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Keywords DCIS, Incidence, Screening, Trend
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Journal Breast Cancer Research and Treatment
van Steenbergen, L.N, Voogd, A.C, Roukema, J.A, Louwman, W.J, Duijm, L.E.M, Coebergh, J.W.W, & van de Poll-Franse, L.V. (2009). Screening caused rising incidence rates of ductal carcinoma in situ of the breast. Breast Cancer Research and Treatment, 115(1), 181–183. doi:10.1007/s10549-008-0067-5