Prognostic Gleason grade grouping: data based on the modified Gleason scoring system

In an article by respected experts including Walsh, Epstein and Partin published in BJUI (2013) a prognostic index based on Gleason score was proposed. This should simplify the patient interpretation of risk of prostate cancer recurrence following radical prostatectomy. The prognostic index would be reported 1-5; Gleason score ≤6 (prognostic grade group I); Gleason score 3+4=7 (prognostic grade group II); Gleason score 4+3=7 (prognostic grade group III); Gleason score 4+4=8 (prognostic grade group (IV); and Gleason score 9–10 (prognostic grade group (V).