The relationship between breast density and bone mineral density after menopause

Area of Science:

• Radiology
• Bone Densitometry
• Mammography

Background:

• Breast density and bone mineral density are key health indicators in postmenopausal women.
• Understanding their relationship may offer insights into shared risk factors or biological pathways.

Purpose of the Study:

• To investigate the correlation between breast density and bone mineral density in postmenopausal women.
• To explore how age and body mass index influence this relationship.

Main Methods:

• Retrospective analysis of 130 postmenopausal women undergoing bone densitometry and mammography.
• Mammograms were categorized using the Breast Imaging-Reporting and Data System (BIRADS) from Grade 1 (fatty) to Grade 4 (extremely dense).
• Correlation analysis was performed to assess relationships between breast density, bone mineral density (T-score), age, and body mass index.

Main Results:

• A significant positive correlation was observed between breast density and bone mineral density T-scores (0.29).
• Conversely, breast density showed a negative correlation with age (-0.59) and body mass index (-0.39).
• Higher T-scores were associated with increased breast density, while increased age and BMI correlated with decreased breast density.

Conclusions:

• Bone mineral density is positively associated with breast density in postmenopausal women.
• Age and body mass index are inversely related to breast density.
• Further large-scale prospective studies are recommended to precisely evaluate breast cancer risk associated with breast density in Korean women.