Distribution of mammographic density and its influential factors among Chinese women.

ABSTRACT:

Background

Mammographic density (MD) has not been systematically investigated among Chinese women. Breast cancer screening programmes provided detailed information on MD in a large number of asymptomatic women.

Methods

In the Multi-modality Independent Screening Trial (MIST), we estimated the association between MD and its influential factors using logistic regression, adjusting for age, body mass index (BMI) and study area. Differences between Chinese and other ethnic groups with respect to MD were also explored with adjustment for age and BMI.

Results

A total of 28 388 women aged 45 to 65 years, who had been screened by mammography, were enrolled in the study. Of these, 49.2% were categorized as having dense breasts (BI-RADS density 3 and 4) and 50.8% as fatty breas

SUBMITTER: Dai H 

PROVIDER: S-EPMC4121553 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature