@article { author = {Mizukoshi, Miwa M and Hossain, Syeda Z and Poulos, Ann}, title = {Mammographic Breast Density of Japanese Women Living in Australia: Implications for Breast Screening Policy}, journal = {Asian Pacific Journal of Cancer Prevention}, volume = {20}, number = {9}, pages = {2811-2817}, year = {2019}, publisher = {West Asia Organization for Cancer Prevention (WAOCP), APOCP's West Asia Chapter.}, issn = {1513-7368}, eissn = {2476-762X}, doi = {10.31557/APJCP.2019.20.9.2811}, abstract = {Background: Mammographic Breast Density (MBD) increases breast cancer risk, lowers sensitivity of mammographyand is related to ethnicity. This study compared the MBD of Australian women living in Australia (AW), Japanesewomen living in Japan (JWJ) and Japan-born women living in Australia (JWA). The outcomes have implications forbreast screening policies in Australia. Methods: In this cross-sectional study, mammographic images were collectedfrom a total of 677 women who were examined at BreastScreen NSW or Miyata Hospital, Japan. The images wereretrospectively evaluated using the 5th edition Breast Imaging-Reporting and Data System (BI-RADS) to assessthe level of MBD. Descriptive analyses and binary logistic regressions were performed. Results: More than 65% ofAW had low MBD while the majority of JWJ had high MBD. Among AW, low MBD was found in women aged 40-49and 50-59. The MBD of JWA showed a similar pattern to JWJ but with a slightly lower MBD. The great majority ofJWA aged 40-49 were found to have high MBD compared to women aged 50-59. JWJ were categorised as high MBDregardless of their age. JWA were 5 times more likely and JWJ were 15 times more likely to have high MBD compared toAW. Conclusion: Mammography screening becomes more effective for JW after migration to Australia. For JWAaged 40-49 years, supplemental screening options are indicated to provide better cancer detection. For AW, screeningmammography could be equally as effective for AW aged 40-49 years as for those aged 50-59.}, keywords = {Breast density,mammography,Japan,Australia,Early Detection of Cancer}, url = {https://journal.waocp.org/article_88736.html}, eprint = {https://journal.waocp.org/article_88736_faa3ebe3ec7fc15185ab65b9577a1b94.pdf} }