Table 3. Weight Assignments for the ypT stage and TRG Scoring Systems.
Modified ypT stagea | ypT stage | TRG | Weighted score |
---|---|---|---|
M-TTRG0 | T0 | TRG1 | 0.604 |
M-TTRG1 | T1 | TRG2 | 1.576 |
T2 | TRG2 | 1.944 | |
T1 | TRG3 | 2.180 | |
T3 | TRG2 | 2.312 | |
T2 | TRG3 | 2.548 | |
T4 | TRG2 | 2.680 | |
T1 | TRG4 | 2.784 | |
M-TTRG2 | T3 | TRG3 | 2.916 |
M-TTRG3 | T2 | TRG4 | 3.152 |
T4 | TRG3 | 3.284 | |
T1 | TRG5 | 3.388 | |
T3 | TRG4 | 3.520 | |
M-TTRG4 | T2 | TRG5 | 3.756 |
T4 | TRG4 | 3.888 | |
T3 | TRG5 | 4.124 | |
T4 | TRG5 | 4.492 |
a M-TTRG classification: modified ypT stage by combining ypT stage and TRG; b Estimated β-coefficients for every increase in ypT and TRG were 0.368 and 0.604. Total weight was calculated by the sum of increased β of each ypT and TRG.