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Efficacy evaluation of nCRT.
| Characteristics | 45Gy group | 50.4Gy group | χ2 | p |
|---|---|---|---|---|
| TRG stage | 0.288 | 0.592 | ||
| Grade 0,1 | 31 | 43 | ||
| Grade 2,3 | 17 | 29 | ||
| Imaging evaluation | 0.005 | 0.945 | ||
| DCR (CR+PR+SD) | 43 | 64 | ||
| PD | 5 | 8 | ||
| Operation | 4.986 | 0.026 | ||
| Anal-preservation | 29 | 57 | ||
| Non-anal-preservation | 19 | 15 |
DCR, disease control rate; CR, complete response; PR, partial response; SD, disease stability; PD, disease progression; nCRT, neoadjuvant chemoradiotherapy.
