@misc{BerensRederRazumetal., author = {Berens, Eva-Maria and Reder, Maren and Razum, Oliver and Kolip, Petra and Spallek, Jacob}, title = {Informed Choice in the German Mammography Screening Program by Education and Migrant Status: Survey among First-Time Invitees}, series = {PLOS ONE}, volume = {10}, journal = {PLOS ONE}, number = {11}, issn = {1932-6203}, doi = {10.1371/journal.pone.0142316}, pages = {1 -- 11}, abstract = {Breast cancer is the most prevalent cancer among women and mammography screening programs are seen as a key strategy to reduce breast cancer mortality. In Germany, women are invited to the population-based mammography screening program between ages 50 to 69. It is still discussed whether the benefits of mammography screening outweigh its harms. Therefore, the concept of informed choice comprising knowledge, attitude and intention has gained importance. The objective of this observational study was to assess the proportion of informed choices among women invited to the German mammography screening program for the first time. A representative sample of 17,349 women aged 50 years from a sub-region of North Rhine Westphalia was invited to participate in a postal survey. Turkish immigrant women were oversampled. The effects of education level and migration status on informed choice and its components were assessed. 5,847 (33.7\%) women responded to the postal questionnaire of which 4,113 were used for analyses. 31.5\% of the women had sufficient knowledge. The proportion of sufficient knowledge was lower among immigrants and among women with low education levels. The proportion of women making informed choices was low (27.1\%), with similar associations with education level and migration status. Women of low (OR 2.75; 95\% CI 2.18-3.46) and medium education level (OR 1.49; 95\% CI 1.27-1.75) were more likely to make an uninformed choice than women of high education level. Turkish immigrant women had the greatest odds for making an uninformed choice (OR 5.30, 95\% CI 1.92-14.66) compared to non-immigrant women. Other immigrant women only had slightly greater odds for making an uninformed choice than non-immigrant women. As immigrant populations and women with low education level have been shown to have poor knowledge, they need special attention in measures to increase knowledge and thus informed choices.}, language = {en} } @misc{BerensMohwinkelEckertetal., author = {Berens, Eva-Maria and Mohwinkel, Lea-Marie and Eckert, Sandra van and Reder, Maren and Kolip, Petra and Spallek, Jacob}, title = {Uptake of Gynecological Cancer Screening and Performance of Breast Self-Examination Among 50-Year-Old Migrant and Non-migrant Women in Germany: Results of a Cross-Sectional Study (InEMa)}, series = {Journal of Immigrant and Minority Health}, volume = {21}, journal = {Journal of Immigrant and Minority Health}, number = {3}, issn = {1557-1920}, doi = {10.1007/s10903-018-0785-7}, pages = {674 -- 677}, abstract = {Our aim was to provide data regarding uptake of gynecological early detection measures and performance of breast self-examinations among migrant women in Germany. Cross-sectional self-reported data were collected using paper-and-pencil questionnaires. Descriptive analyses, Chi square-tests, and logistic regression were applied. Results were adjusted for educational level. Of 5387 women, 89.9\% were autochthonous, 4.1\% German resettlers, 2.8\% Turkish, 3.1\% other migrants. Participation rates regarding cancer screening differed significantly, with the lowest proportion in Turkish migrants (65.0\%), resettlers (67.8\%), other migrants (68.2\%) and autochthonous population (78.2\%). No differences in performance of breast self-examinations were detected. When adjusted for education, results indicated only slight changes in the odds to participate in screening irregularly or not at all. Results support existing evidence by showing lower participation rates in cancer screening among migrant women, but there were no differences regarding breast self-examinations. Migrant women form a potential high-risk group for late-stage diagnosis of cervical or breast cancer.}, language = {en} } @misc{BerensKaucherEckertetal., author = {Berens, Eva-Maria and Kaucher, Simone and Eckert, Sandra van and Reder, Maren and Kolip, Petra and Spallek, Jacob}, title = {Knowledge about mammography screening in Germany by education and migrant status - results of a cross-sectional study (InEMa)}, series = {Applied Cancer Research}, volume = {39}, journal = {Applied Cancer Research}, number = {6}, issn = {1980-5578}, doi = {10.1186/s41241-019-0076-1}, pages = {8}, abstract = {Background: The population-based mammography screening program (MSP) is aimed to reduce breast cancer mortality, to detect breast cancer at an early stage, and to allow for less invasive treatment. However, it also has some potential harms, such as overdiagnosis and overtreatment. Therefore, it is necessary that women receive sufficient and balanced information to enable informed decision-making. We examined knowledge about benefits and harms of the MSP in Germany among first-time invitees of different socio-demographic backgrounds. Methods: This observational study assessed knowledge about benefits and harms of the MSP among women who were invited to the MSP for the first time by six multiple choice items, using a postal survey. We investigated (i) single items of knowledge, (ii) the distribution of sufficient knowledge stratified by education, migration status and invitation, and (iii) possible determinants of sufficient knowledge by analyzing Odds Ratios (ORs) using bivariate and multivariate logistic regression. Results: In total, 5397 women included in the analyses. 46.1\% of the study population had sufficient knowledge about benefits and harms of the MSP. However, women with low educational level and migration background had higher proportions of insufficient knowledge and used most frequently the option "don't know". Women had the most difficulties answering the numeric question and the question about the target group correctly. Results from the logistic regression showed that the odds of having sufficient knowledge were higher among well-educated women (OR 3.84, 95\%CI 3.24-4.55), among women who already received the MSP invitation (OR 1.38, 95\%CI 1.20-1.59) and lowest among Turkish women (OR 0.14, 95\%CI 0.07-0.25). Conclusions: Women with low education and migration background need adapted information regarding benefits and harms of the MSP and are important target groups for further developing the information material about mammography screening to reduce disparities in knowledge and enable informed decision-making.}, language = {en} } @misc{BerensRiedelRederetal., author = {Berens, Eva-Maria and Riedel, J{\"o}rg and Reder, Maren and Razum, Oliver and Kolip, Petra and Spallek, Jacob}, title = {Postalische Befragung von Frauen mit t{\"u}rkischem Migrationshintergrund - Identifizierung, Stichprobenbereinigung und Response im Rahmen der InEMa-Studie}, series = {Das Gesundheitswesen}, volume = {79}, journal = {Das Gesundheitswesen}, number = {12}, issn = {0941-3790}, doi = {10.1055/s-0035-1564076}, pages = {1000 -- 1003}, language = {de} } @misc{KaucherKhilKajueteretal., author = {Kaucher, Simone and Khil, Laura and Kaj{\"u}ter, Hiltraud and Becher, Heiko and Reder, Maren and Kolip, Petra and Spallek, Jacob and Winkler, Volker and Berens, Eva-Maria}, title = {Breast cancer incidence and mammography screening among resettlers in Germany}, series = {BMC public health}, volume = {20}, journal = {BMC public health}, number = {1}, doi = {10.1186/s12889-020-08534-7}, pages = {10}, abstract = {Background - 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. Methods - 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. Results - 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. Conclusions - 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.}, language = {en} } @misc{RederBerensSpalleketal., author = {Reder, Maren and Berens, Eva-Maria and Spallek, Jacob and Kolip, Petra}, title = {Development of the Informed Choice in Mammography Screening Questionnaire (IMQ): factor structure, reliability, and validity}, series = {BMC Psychology}, volume = {7}, journal = {BMC Psychology}, number = {1}, issn = {2050-7283}, doi = {10.1186/s40359-019-0291-2}, pages = {12}, abstract = {Background: Informed choice is of ethical and practical importance in mammography screening. To assess the level to which decisions regarding such screening are informed is thus imperative, but no specific instrument has been available to measure informed choice in the German mammography screening programme. The aims of this study were to develop the Informed Choice in Mammography Screening Questionnaire (IMQ) and to find first evidence for the factor structure, reliability and validity of its different components. Methods: The IMQ was sent to 17.349 women aged 50 in Westphalia-Lippe, Germany. The instrument has been developed after consideration of (1) the results of qualitative interviews on decision making in the mammography screening programme, (2) relevant literature on other informed choice instruments and (3) a qualitative study on influencing factors. The IMQ comprises 3 scales (attitude, norms, and barriers), 1 index (knowledge) and singular items covering intention to participate and sociodemographic variables. To assess the psychometric properties of the components of the IMQ, confirmatory factor and item response theory analyses were conducted. Additionally, reliability, validity and item statistics were assessed. Results: 5.847 questionnaires were returned (response rate 33.7\%). For attitude, the confirmatory factor analysis supported a one-factor structure. For norms, the model fit was not acceptable. Reliability levels were good with a Cronbach's α of.793 for attitude (4 items) and.795 for norms (5 items). For barriers, 9 items were deleted because of low discrimination indices; 6 items remained. The hypothesised assumption-subscale and the importance-subscale were confirmed, but these subscales showed poor reliabilities with Cronbach's α=.525 (4 items) and.583 (2 items). For the knowledge index, item response theory analysis showed that 6 out of 7 items were suitable. Hypotheses concerning the correlations between the different components were confirmed, which supported their convergent and divergent validity. Conclusion: The results of this study demonstrated that the IMQ is a multidimensional instrument. Further development of the barriers and norms scales is necessary. The IMQ can be utilised to assess the level of informed choices as well as influencing factors.}, language = {en} } @misc{BerensRederRazumetal., author = {Berens, Eva-Maria and Reder, Maren and Razum, Oliver and Kolip, Petra and Spallek, Jacob}, title = {Informed choice in mammography screening program among migrant and non-migrant women: a survey among first-time invitees in Germany, 2013-2015}, series = {European Journal of Public Health}, volume = {28}, journal = {European Journal of Public Health}, number = {Suppl. 1}, issn = {1464-360X}, doi = {10.1093/eurpub/cky047.107}, pages = {S. 55}, abstract = {Background: In Germany, women aged 50 to 69 are invited biennially to the population-based mammography screening programme (MSP). There is still a broad discussion whether the benefits of the programme outweigh its harms. Hence, the concept of informed choice is of particular importance for MSP. The aim of this survey was to assess the proportion of informed choices among migrant and non-migrant women invited to the German MSP for the first time. Methods: A random sample of 17,349 women aged 50 from a sub-region of North Rhine Westphalia was invited to participate in a postal cross-sectional survey conducted in German and Turkish. Turkish and other migrants were identified by country of birth and German resettlers additionally by self-reported resettler-status. Turkish migrant women were oversampled, due to expected lower response-rates. The effect of migration status on informed choice and on its three components (knowledge, attitude and intention) were assessed by chi-square tests and logistic regression modelling. Results:5,847 (33.7\%) women responded to the postal questionnaire. 4,113 complete cases were included in the analyses. The proportion of women making informed choices was low (27.1\%). Turkish migrant women had the highest odds for making an uninformed choice (OR 5.30, 95\%CI 1.92-14.66) independent of educational level. Other migrant groups only had slightly higher odds for making an uninformed choice (German resettlers: OR 1.50, 95\%CI 1.00-2.25; other migrants: OR 1.57, 95\%CI 0.96-2.57) compared to non-migrant women. Fewer Turkish and other immigrant women intended to participate in the MSP. Immigrant women had a more positive attitude and a lower proportion of sufficient knowledge compared to non-migrant women. Conclusions: The overall proportion of informed choice in the German MSP is low and knowledge is poor. Measures are needed to improve information materials, strengthen health literacy and create a user-friendly environment facilitating informed choices especially for migrant women.}, language = {en} } @misc{BerensRederRazumetal., author = {Berens, Eva-Maria and Reder, Maren and Razum, Oliver and Kolip, Petra and Spallek, Jacob}, title = {Informed choice in mammography screening program: a survey among first-time invitees in Germany}, series = {European Journal of Public Health}, volume = {27}, journal = {European Journal of Public Health}, number = {Suppl. 3}, issn = {1464-360X}, doi = {10.1093/eurpub/ckx187.213}, pages = {S. 83}, language = {en} }