Breast Density Knowledge in a Screening Mammography Population Exposed to Density Notification

Area of Science:

• Radiology
• Public Health
• Women's Health

Background:

• State breast density reporting laws aim to inform women about their breast density.
• However, the accuracy of women's self-reported breast density and their understanding of its implications remain unclear.

Purpose of the Study:

• To compare self-reported breast density with clinically assessed density.
• To evaluate women's knowledge of breast density implications and their attitudes toward future screening.

Main Methods:

• A survey was conducted among women aged 40-74 years with no prior breast cancer history.
• Breast density was assessed using BI-RADS categories, and agreement with self-reports was measured.
• Knowledge of dense breast implications and desire for supplemental screening were evaluated.

Main Results:

• Concordance between self-reported and clinical breast density varied significantly by actual density.
• Women with never-dense breasts were more likely to accurately know their density in states with universal reporting.
• Desire for supplemental screening was higher among women who believed they had dense breasts.

Conclusions:

• Current breast density reporting laws may not ensure accurate personal knowledge of breast density.
• Standardized communication of breast density results to all women is needed to improve understanding and support informed screening decisions.