A single center cohort which enrolled women who performed mammography, bone densitometry (DEXA), and coronary CT angiography in Seoul National University Bundang Hospital from March 2011 to February 2013.

To evaluate whether bone mineral density and breast arterial calcification can predict coronary artery disease in women older than 40 years

Inclusion Criteria:

• Women (≥ 40 years) who performed mammography, bone DEXA, and coronary CT angiography at health promotion center of Seoul National University Bundang Hospital.

Exclusion Criteria:

• Women who have history of breast surgery or intervention
• Women who have history of myocardial infarction or revascularization
• Too poor image quality of coronary CT angiography for interpretation
• Renal dysfunction with serum creatinine ≥ 1.4mg/dL

• The number of women who met inclusion criteria was 2113.
• 13 women were excluded due to history of coronary revascularization (n=1) and breast surgery or intervention (n=12).
• Finally, 2100 women were enrolled to the BBC cohort.