Table 2.
Clinical and pathologic characteristics of CRC by number of examined lymph nodes
| ≤12 LNs n = 67-76 | >12 LNs n = 121-136 | P value | |
|---|---|---|---|
| Age, median (Interquartile range) | 68 (56–77) | 61 (62–69) | 0.002 |
| Male, no (%) | 42 (55) | 63 (46) | 0.2 |
| Location | 0.3 | ||
| Ascending | 28 (37 %) | 56 (42 %) | |
| Transverse | 9 (12 %) | 12 (9 %) | |
| Descending | 6 (8 %) | 20 (15 %) | |
| Rectosigmoid | 32 (43 %) | 45 (34 %) | |
| Chemotherapy before surgery, no (%) | 7 (9 %) | 4 (3 %) | 0.05 |
| Radiotherapy before surgery, no (%) | 7 (9 %) | 4 (3 %) | 0.05 |
| Tumor largest size, Median (interquartile) cm | 4.0 (3.0-5.5) | 4.5 (3.0-5.7) | 0.4 |
| Specimen largest size, Median (interquartile) cm | 31 (18–67) | 33 (23–60) | 0.9 |
| Number of metastatic LNs, Median (interquartile) | 0 (0–1) | 0 (0–2) | 0.1 |
| Ratio of metastatic LNs to total LN examined, Median (interquartile) | 0 (0–0.14) | 0 (0–0.09) | 0.6 |