Table 4.
Frequency table pertaining to treatment recommendations for the model created from patient data.
| Treatment Options | Frequency | Percent |
|---|---|---|
| Preoperative CRTa | ||
| Present | 231 | 59.5 |
| Absent | 129 | 33.2 |
| Preoperative RTb | 28 | 7.2 |
| Operation Technique | ||
| APRc | 113 | 29.1 |
| ARd | 19 | 4.9 |
| Hartmann operation | 10 | 2.6 |
| LARe | 146 | 37.6 |
| Palliative treatment | 3 | 0.8 |
| TEMf | 1 | 0.3 |
| VLARg | 94 | 24.2 |
| ISRxh | 1 | 0.3 |
| CAAi | 1 | 0.3 |
| Adjuvant CTj | ||
| Present | 287 | 74.0 |
| Absent | 101 | 26.0 |
| Adjuvant RTk | ||
| Present | 52 | 13.4 |
| Absent | 336 | 86.6 |
| Treatment combination for the first decision step | ||
| Preoperative RT + APR | 12 | 3.1 |
| Preoperative RT + AR | 8 | 2.1 |
| Preoperative RT + Hartmann operation | 1 | 0.3 |
| Preoperative RT + LAR | 6 | 1.5 |
| Preoperative RT + VLAR | 1 | 0.3 |
| Preoperative CRT + APR | 82 | 21.1 |
| Preoperative CRT + Hartmann operation | 3 | 0.8 |
| Preoperative CRT + ISRx | 1 | 0.3 |
| Preoperative CRT + LAR | 68 | 17.5 |
| Preoperative CRT + CAA | 1 | 0.3 |
| Preoperative CRT + VLAR | 76 | 19.6 |
| APR + without preoperative CRT | 19 | 4.9 |
| AR + without preoperative CRT | 11 | 2.8 |
| Hartmann operation+without preoperative CRT | 6 | 1.5 |
| LAR + without preoperative CRT | 72 | 18.6 |
| Palliative treatment+without preoperative CRT | 3 | 0.8 |
| TEM + without preoperative CRT | 1 | 0.3 |
| VLAR + without preoperative CRT | 17 | 4.4 |
| Treatment combination for the second decision step | ||
| Adjuvant CT + adjuvant RT | 48 | 12.4 |
| Only adjuvant CT | 239 | 61.6 |
| Only adjuvant RT | 4 | 1.0 |
| No adjuvant treatment | 97 | 25.0 |
aCRT: Chemoradiotherapy;
bRT: Radiotherapy;
cAPR: Abdominal perineal resection;
dAR: Anterior resection;
eLAR: Low anterior resection;
fTEM: Transanal endoscopic microsurgery;
gVLAR: Very low anterior resection;
hISRx: Intersphincteric resection;
iCAA: Colo-anal anastomosis;
jCT: Chemotherapy;
kRT: Radiotherapy