Table 4.
Tumor regression grade and clinical long-term outcome
| Variables | P value | |
| 5-yr OS | ||
| Mandard good response (TRG1/2) | 96.4% ± 2.0% | 0.0021 |
| Mandard good response (TRG3-5) | 83.1% ± 4.2% | |
| ypCR (Mandard TRG1) | 100.00%2 | 0.6911 |
| Mandard partial response (TRG2) | 86.68%2 | |
| 5-yr DFS | ||
| Mandard good response (TRG1/2) | 92.0% ± 3.5% | 0.0001 |
| Mandard good response (TRG3-5) | 72.3% ± 3.8% | |
| ypCR (Mandard TRG1) | 100.00%2 | 0.5021 |
| Mandard partial response (TRG2) | 86.68%2 |
1
Log rank test;
2
No statistics were computed because all cases were censored. Univariate analysis follow-up: mean 56 mo (range: 3-125 mo). OS: Overall survival; DFS: Disease-free survival; TRG: Tumor regression grades.