Thread by @DrPaulaGordon

Thanks @colinmcphail for your coverage cbc.ca/news/canada/ne… Not sure Moore is correct that "breast density is not associated with an increased risk of dying from breast cancer."

No registry records the breast density of women who have died of breast cancer. But women with dense breasts certainly have a higher incidence of interval cancers, and interval cancers have a worse prognosis than screen-detected cancer.

Besides, mortality reduction is only one of the benefits of early detection, but the only one considered by @cantaskforce . They gave no value to women being able to have less aggressive surgery and avoid chemotherapy when cancers are found early. Those are important to women.