| 5-FU/LV | 5-fluorouracil/leucovorin |
| UFT | Tegafur-uracil |
| CCRT | Concurrent chemoradiotherapy |
| pCR | Pathologic complete response |
| OS | Overall survival |
| RFS | Recurrence-free survival |
| CRC | Colorectal cancer |
| LARC | Locally advanced rectal cancer |
| TME | Total mesorectal excision |
| TNT | Total neoadjuvant therapy |
| CT | Computed tomography |
| MRI | Magnetic resonance imaging |
| ECOG | Eastern Cooperative Oncology Group |
| CBC | Complete blood count |
| CEA | Carcinoembryonic antigen |
| RT | Radiotherapy |
| GTV | Gross tumor volume |
| CTV | Clinical target volume |
| PTV | Planning target volume |
| IMRT | Intensity-modulated radiotherapy |
| LAR | Low anterior resection |
| APR | Abdominoperineal resection |
| TRG | Tumor regression grade |
| CTCAE | Common Toxicity Criteria for Adverse Events |
| SD | Standard deviation |
| ANOVA | Analysis of variance |
| OR | Odds ratio |
| CI | Confidence interval |