Prognostic value of Ki67LI in HER2-negative luminal (HNL) early breast cancer (EBC): A 14-year single institution experience with long follow-up
2013
e11569 Background: Several studies have emphasized the biologic and prognostic value of Ki67LI and its role in routine practice, particularly to define prognostic subgroups of luminal tumors. Methods: Ki67LI was identified by immunohistochemical staining in 3760 consecutive EBC pts followed from 1995 to 2008. Median age was 61 y. The relationship with clinic-pathological parameters and the prognostic significance of KI67LI were investigated in all EBCs and in 2380 HER2 negative luminal (HNL) cases, stratified on homogeneous grading (594 G1, 1282 G2, 504 G3). Results: Median Ki67LI values were 22% in all cases, 20% in HNL and 10%, 20% and 35% in HNL- G1,G2,G3 respectively. Ki67LI > 22% (1873 pts) was significantly (p 22% Ki67LI respectively. Median time to first event was 31.7 ms in > 22% vs 50...
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