MKI67 and neoplasm: The impact of multiple prognostic variables on DFS and OS — including menopausal status, < 40 or ≥ 40 years, Ki-67 index ≤ 50% or > 50%, tumour size <5 cm or ≥5 cm, lymph node status previous to surgery, achieving a pCR after NAC and adjuvant capecitabine — was evaluated using Cox regression analysis.