A systematic review and meta-analysis examined data from 236,475 participants with a mean age of 58.5 years. The researchers looked for links between breast arterial calcification and serious health outcomes. They found that the presence of calcification was associated with increased risks for all-cause mortality, cardiovascular mortality, heart failure, stroke, and myocardial infarction. These associations remained significant even when looking specifically at screening mammography cohorts.
The study describes breast arterial calcification as a surrogate marker of cardiovascular disease rather than a direct cause. This distinction is important because it suggests the finding identifies at-risk individuals rather than proving the calcification itself causes the disease. The analysis covered a long follow-up period ranging from 0.55 to 26 years.
Readers should understand that this is a large observational study showing links between markers and outcomes. The main reason to be careful is that the study does not prove causation. Recognition of this incidental finding may enable timely identification of at-risk individuals, but it does not change current medical advice or treatment plans.