Body Mass Index and Mammographic Density in a Multiracial and Multiethnic Population-Based Study.

ABSTRACT:

Background

Mammographic density (MD) is strongly associated with breast cancer risk. We examined whether body mass index (BMI) partially explains racial and ethnic variation in MD.

Methods

We used multivariable Poisson regression to estimate associations between BMI and binary MD [Breast Imaging Reporting and Database System (BI-RADS) A&B versus BI-RADS C&D] among 160,804 women in the Utah mammography cohort. We estimated associations overall and within racial and ethnic subgroups and calculated population attributable risk percents (PAR%).

Results

We observed the lowest BMI and highest MD among Asian women, the highest BMI among Native Hawaiian and Pacific Islander women, and the lowest MD among American Indian and Alaska Native (AIAN) and Black women. BMI was invers

SUBMITTER: Barnard ME 

PROVIDER: S-EPMC9250611 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature