About The Study: In this cohort study of patients with early breast cancer, prediagnostic statin use was not associated with higher survival; however, postdiagnostic statin use was associated with lower all-cause and breast cancer–specific mortality among patients with hormone receptor–positive intrinsic subtypes. These findings suggest that statin therapy may improve survival of patients with early hormone receptor–positive subtypes.
Corresponding Author: To contact the corresponding author, Santeri Palmi, MD, email santeri.palmi@tuni.fi .
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(doi:10.1001/jamanetworkopen.2026.16375)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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