Article ; Online: Changes in Breast Cancer Risk and Risk Factor Profiles among U.S.-Born and Immigrant Asian American Women Residing in the San Francisco Bay Area.
2023 Volume 32, Issue 5, Page(s) 666–677
Abstract: Background: Breast cancer incidence rates in women of Asian descent have been increasing in the United States and Asia.: Methods: In a case-control study of Asian American women from the San Francisco Bay Area, we assessed associations with ... ...
Abstract | Background: Breast cancer incidence rates in women of Asian descent have been increasing in the United States and Asia. Methods: In a case-control study of Asian American women from the San Francisco Bay Area, we assessed associations with birthplace and migration-related characteristics and compared risk factors between Asian American and non-Hispanic White women by birthplace and birth cohort. Results: Birthplace and migration-related characteristics were associated with breast cancer risk only among women in the younger birth cohort (1951-1984) that comprised 355 cases diagnosed at age ≤55 years and 276 sister and population controls. Breast cancer risk was marginally increased among foreign-born women [OR = 1.40; 95% confidence interval (CI), 0.97-2.03] and two-fold among foreign-born Chinese women (OR = 2.16; 95% CI, 1.21-3.88). Two-fold increased risks were associated with migration at age ≥40 years and longer U.S. residence (≥30 years or ≥75% of life). The education level was high among both cases and controls. Differences in the prevalence of risk factors by birthplace and birth cohort suggest temporal changes in reproductive and lifestyle-related factors. The prevalence in risk factors was similar between foreign-born and U.S.-born women in the younger birth cohort, and did not fully explain the observed associations with birthplace and other migration characteristics. Conclusions: In contrast to studies from earlier decades, younger foreign-born Asian American women had a higher risk of breast cancer than U.S.-born Asian American women. Impact: It is important and urgent to understand what factors drive the increasing burden of breast cancer in women of Asian descent and implement effective prevention programs. |
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MeSH term(s) | United States/epidemiology ; Female ; Humans ; Middle Aged ; Adult ; Asian ; Breast Neoplasms/epidemiology ; Breast Neoplasms/etiology ; Case-Control Studies ; San Francisco/epidemiology ; Risk Factors ; Emigrants and Immigrants |
Language | English |
Publishing date | 2023-03-03 |
Publishing country | United States |
Document type | Journal Article ; Research Support, N.I.H., Extramural |
ZDB-ID | 1153420-5 |
ISSN | 1538-7755 ; 1055-9965 |
ISSN (online) | 1538-7755 |
ISSN | 1055-9965 |
DOI | 10.1158/1055-9965.EPI-22-1128 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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