What is considered a high Ki-67 score in breast cancer? Understanding Your Ki-67 Results
Less than 10% is considered low. 20% or higher is considered high.
Does a high Ki-67 mean chemo? In subgroup analysis, a higher Ki-67 value (≥25%) was a significant predictive factor for the response to neoadjuvant chemotherapy, especially in ER-negative and HER2-positive breast cancer patients.
What is normal Ki-67? A Ki-67 index of 2% or lower means that fewer than 2 in every 100 cells (2%) are dividing. This is a grade 1 NET (WD NET G1). This means that between 3 and 20 cells in every 100 cells (3% and 20%) are dividing.
What is Ki-67 a marker for? The Ki67 protein is well characterized at the molecular level and is extensively used as a prognostic and predictive marker for cancer diagnosis and treatment. Increasing evidence indicates that Ki67 may be an effective target in cancer therapy.