Wednesday, March 04, 2026 An adjusted Breast Cancer Index model - MAC4 and MAC5 O'Regan RM, Ren Y, Zhang Y, Fleming GF, Francis PA, Pagani O, Walley BA, Kammler R, Dell’Orto P, Viale G, Loi S, Colleoni M, Treuner K, Regan MM. Identifying premenopausal patients with early-stage hormone receptor–positive breast cancer at minimal risk of distant recurrence by breast cancer index (ONLINE). The Breast 2026.https://doi.org/10.1016/j.breast.2026.104714 An adjusted Breast Cancer Index model with an additional cutpoint identified postmenopausal women with hormone-receptor-positive node-negative disease at minimal risk of distant recurrence within 10 years.
