Influence of Nativity Status on Breast Cancer Risk Among US Black Women |
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Authors: | Luisa N Borrell DDS PhD Delivette Castor Francine P Conway Mary Beth Terry |
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Institution: | (1) Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 West 168th Street, New York, NY 10032, USA |
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Abstract: | Black women are at increased risk for breast cancer mortality. The black category is assumed to be homogeneous, an assumption
that may be misleading. This study aims to examine the relationship between nativity and breast cancer risk factors among
women identified as black. A sample of 236 black women over 18 years of age in Brooklyn, New York, was recruited. Data were
collected on race/ethnicity, breast cancer risk factors, and other sociodemographic, behavioral, and early life experience
factors. Logistic regression analyses were used to estimate prevalence ratios for association between nativity and breast
cancer risk factors. US-born blacks were more likely to be unemployed, smoke, not breastfeed, and breastfeed for a shorter
duration than foreign-born blacks (all p≤0.01). Foreign-born blacks were more likely to have parents who achieved at least a high school education (p<0.05). After adjustment for smoking, employment, and parental education, US-born blacks were twice as likely to never breastfeed
(PR 2.2, 95% CI: 1.1, 4.46) compared to foreign-born blacks. Among women who breastfed, US-born blacks were also less likely
to breastfeed for 6–11 months or more than 12 months, but these associations were not statistically significant. Because lactation
reduces breast cancer risk and is a leading modifiable risk factor, understanding its variation within black women will help
physicians and public health practitioners to target patient counseling and education of breast cancer risk.
Borrell, Castor, and Terry are with the Department of Epidemiology, Mailman School of Public Health, Columbia University,
New York, NY, USA; Conway is affiliated at Adelphi University, New York, NY, USA. |
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Keywords: | African American Black Breast cancer Immigrant health Risk factors Urban health Women |
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