Table 1.
Association between poorly differentiated cluster and other clinicopathological characteristics
| PDC | P value | ||
|---|---|---|---|
| G1/G2 | G3 | ||
| (n = 79) | (n = 52) | ||
| Age | |||
| <65 | 30 | 21 | 0.855 |
| ≥65 | 49 | 31 | |
| Sex | |||
| Male | 49 | 29 | 0.585 |
| Female | 30 | 23 | |
| ASA-PS | |||
| 1/2 | 66 | 48 | 0.331 |
| 3/4 | 13 | 4 | |
| Tumor location | |||
| Colon | 31 | 18 | 0.712 |
| Rectum | 48 | 34 | |
| Tumor size (mm) | |||
| <50 | 39 | 23 | 0.595 |
| ≥50 | 40 | 29 | |
| Tumor stage | |||
| T1–T3 | 66 | 43 | 0.999 |
| T4 | 13 | 9 | |
| Histopathological grading | |||
| G1/G2 | 74 | 39 | 0.004 |
| G3 | 5 | 13 | |
| Lymphatic invasion | |||
| Absence | 39 | 19 | 0.156 |
| Presence | 40 | 33 | |
| Venous invasion | |||
| Absence | 39 | 27 | 0.859 |
| Presence | 40 | 25 | |
| Nodal involvement | |||
| N1 | 60 | 32 | 0.083 |
| N2 | 19 | 20 | |
| Adjuvant chemotherapy | |||
| Absence | 38 | 21 | 0.473 |
| Presence | 41 | 31 | |
PDC, poorly differentiated cluster; ASA-PS, American Society of Anesthesiologists physical status.