CPS + EG score calculation instructions: Add the points for clinical stage + pathologic stage + ER status + nuclear grade to derive a sum between 0 and 6.
From: Tutt AN, Garber JE, Kaufman B, et al. Adjuvant Olaparib for Patients with BRCA1- or BRCA2-Mutated Breast Cancer. N Engl J Med 2021; 384:2394. Copyright © 2021 Massachusetts Medical Society. Reprinted with permission from Massachusetts Medical Society.
Reference:
- AJCC (American Joint Committee on Cancer): Cancer Staging Manual, 8th ed, Springer, 2017.