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The number and percentage of patients whose T stage, N stage or overall stage was predicted pre-operatively to be higher than the stage determined post-operatively by histopathological examination.
| NAC group (n = 89) | Non-NAC group (n = 78) | p value | |
| Pre-op T > Post-op T | 12 (13.5%) | 15 (19.2%) | 0.31 |
| Pre-op N > Post-op N | 20 (22.5%) | 12 (15.4%) | 0.25 |
| Overall Pre-op stage > Overall Post-op stage | 24 (27.0%) | 14 (17.9%) | 0.17 |
