European studies showed that women with a migration background are less likely to participate in mammography screenings than autochthonous women. However, the participation in the German mammography screening programme (MSP) among ethnic German migrants from countries of the former Soviet Union (called resettlers) is unclear so far. The aim of this study was to identify possible differences regarding MSP participation between resettlers from the FSU and the general German population. Data from two independent, complementary studies from North Rhine-Westphalia, Germany (a retrospective cohort study 1994–2013; a cross-sectional study 2013/14) were used for comparisons between resettlers and the general population: Odds Ratios (ORs) for MSP participation utilizing the cross-sectional data and time trends of breast cancer incidence rates as well as Chi-Square tests for breast cancer stages utilizing the cohort data. Resettlers showed higher Odds to participate in the MSP than the general population (OR 2.42, 95% CI 1.08–5.42). Among resettlers, a large increase in incidence rates was observed during the MSP implementation (2005–2009), resulting in stable and comparable incidence rates after the implementation. Furthermore, pre-MSP implementation, the proportion of advanced breast cancer stages was higher among resettlers than in the German population, post-MSP implementation the proportion was comparable. MSP participating seems surprisingly high among resettlers. An explanation for the increased willingness to participate might be the structured invitation procedure of the MSP. However, the exact reasons remain unclear and future research is needed to confirm this hypothesis and rule out the possibility of selection bias in the cross-sectional study.

中文翻译：

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德国移民中的乳腺癌发病率和乳房 X 光检查。


欧洲研究表明，有移民背景的女性比本地女性参加乳房X光检查的可能性更小。然而，来自前苏联国家的德国移民（称为移民）参与德国乳房X光检查计划（MSP）的情况目前尚不清楚。本研究的目的是确定前苏联移民和德国普通民众在参与 MSP 方面可能存在的差异。来自德国北莱茵-威斯特法伦州两项独立、互补研究的数据（1994-2013 年回顾性队列研究；2013/2014 年横断面研究）用于移民与一般人群之间的比较：MSP 的优势比 (OR)参与利用乳腺癌发病率的横截面数据和时间趋势，以及利用队列数据进行乳腺癌分期的卡方检验。移民参与 MSP 的几率高于一般人群（OR 2.42，95% CI 1.08-5.42）。在移民中，在MSP实施期间（2005-2009年）观察到发病率大幅上升，导致实施后发病率稳定且具有可比性。此外，在 MSP 实施前，移民中晚期乳腺癌的比例高于德国人口，在 MSP 实施后这一比例相当。移民中 MSP 的参与率似乎高得惊人。参与意愿增强的一个解释可能是 MSP 的结构化邀请程序。然而，确切原因尚不清楚，需要未来的研究来证实这一假设并排除横断面研究中选择偏倚的可能性。