Table 1 Clinicopathological parameters correlated with lymph node metastasis
Parameters | LNM | P | |
|---|---|---|---|
Positive (%) | Negative (%) | ||
PDC grade |  |  | < 0.001 |
 G 1 | 1 (5.0) | 130 (79.8) |  |
 G 2 | 6 (30.0) | 30 (18.4) |  |
 G 3 | 13 (65.0) | 3 (1.8) |  |
Depth of submucosal invasion |  |  | < 0.001 |
 > 1 mm | 17 (85.0) | 43 (26.4) |  |
 ≤ 1 mm | 3 (15.0) | 120 (73.6) |  |
Stratification of submucosal invasion | Â | Â | 0.535 |
 SM 1 | 2 (10.0) | 30 (18.4) |  |
 SM 2 | 18 (90.0) | 133 (81.6) |  |
Tumor size (mm) | Â | Â | 0.565 |
 > 20 | 5 (25.0) | 51 (31.3) |  |
 ≤ 20 | 15 (75.0) | 112 (68.7) |  |
Tumor volume (mm3) | Â | Â | 0.432 |
 > 583.96 | 3 (15.0) | 37 (22.7) |  |
 ≤ 583.96 | 17 (85.0) | 126 (77.3) |  |
TB grade |  |  | < 0.001 |
 Bd 1 | 3 (15.0) | 128 (78.5) |  |
 Bd 2 | 8 (40.0) | 30 (18.4) |  |
 Bd 3 | 9 (45.0) | 5 (3.1) |  |
Tumor grade (WHO) | Â | Â | 0.364 |
 1 | 2 (10.0) | 30 (18.4) |  |
 2 | 17 (85.0) | 111 (68.1) |  |
 3 | 1 (5.0) | 22 (13.5) |  |
PNI |  |  | < 0.001 |
 Absence | 13 (65.0) | 154 (94.5) |  |
 Presence | 7 (35.0) | 9 (5.5) |  |
LVI | Â | Â | 0.002 |
 Absence | 14 (70.0) | 154 (94.5) |  |
 Presence | 6 (30.0) | 9 (5.5) |  |
Mucinous composition | Â | Â | 0.463 |
 Absence | 3 (15.0) | 17 (10.4) |  |
 Presence | 17 (85.0) | 146 (89.6) |  |
Location | Â | Â | 0.386 |
 Right colon | 0 (0.0) | 15 (9.2) |  |
 Left colon | 5 (25.0) | 32 (19.6) |  |
 Rectum | 15 (75.0) | 116 (71.2) |  |
Ulceration | Â | Â | 0.516 |
 Absence | 16 (80.0) | 139 (85.3) |  |
 Presence | 4 (20.0) | 24 (14.7) |  |
Number of lesions | Â | Â | 0.443 |
 Unifocal | 19 (95.0) | 159 (97.5) |  |
 Multifocal | 1 (5.0) | 4 (2.5) |  |
Operation method | Â | Â | 0.540 |
 Laparotomy | 8 (40.0) | 77 (47.2) |  |
 Laparoscopy | 12 (60.0) | 86 (52.8) |  |
Postoperative adjuvant chemotherapy |  |  | < 0.001 |
 Absence | 1 (5.0) | 160 (98.2) |  |
 Presence | 19 (95.0) | 3 (1.8) |  |
Age | Â | Â | 0.229 |
 ≤ 60 | 10 (50.0) | 104 (63.8) |  |
  > 60 | 10 (50.0) | 59 (36.2) |  |
Sex | Â | Â | 0.276 |
 Male | 10 (50.0) | 61 (37.4) |  |
 Female | 10 (50.0) | 102 (62.6) |  |
BMI | Â | Â | 0.249 |
 ≤ 28 | 18 (90.0) | 129 (79.1) |  |
 > 28 | 2 (10.0) | 34 (20.9) |  |
HP | Â | Â | 0.657 |
 Absence | 12 (60.0) | 106 (65.0) |  |
 Presence | 8 (40.0) | 57 (35.0) |  |
DM | Â | Â | 0.211 |
 Absence | 19 (95.0) | 138 (84.7) |  |
 Presence | 1 (5.0) | 25 (15.3) |  |
CHD | Â | Â | 0.294 |
 Absence | 17 (85.0) | 150 (92.0) |  |
 Presence | 3 (15.0) | 13 (8.0) |  |