|
Characteristics
|
Pathologic PALNM (−) (n = 244)
|
Pathologic PALNM (+) (n = 19)
|
p
|
|---|
|
Preoperative
|
|
Sex
|
Male
|
158 (94.0%)
|
10 (6.0%)
|
0.325
|
| |
Female
|
86 (90.5%)
|
9 (9.5%)
| |
|
Age (years)
|
63.61 ± 11.846
|
63.37 ± 10.761
|
0.931
|
|
BMI (kg/m2)
|
22.2 ± 2.7
|
22.2 ± 2.6
|
0.929
|
|
ASA
|
1, 2
|
224 (92.9%)
|
17 (7.1%)
|
0.665
|
| |
3, 4
|
20 (90.9%)
|
2 (9.1%)
| |
|
Preoperative
|
< 5
|
160 (94.7%)
|
9 (5.3%)
|
0.133
|
|
CEA (ng/mL)
|
≥ 5
|
82 (89.1%)
|
10 (10.9%)
| |
|
Clinical T stage
|
cT1
|
13 (100%)
|
0 (0.0%)
|
< 0.001
|
| |
cT2
|
30 (96.8%)
|
1 (3.2%)
| |
| |
cT3
|
179 (95.2%)
|
9 (4.8%)
| |
| |
cT4
|
22 (71.0%)
|
9 (29.0%)
| |
|
Clinical N stage
|
cN0
|
94 (97.9%)
|
2 (2.1%)
|
< 0.001
|
| |
cN1
|
75 (98.7%)
|
1 (1.3%)
| |
| |
cN2
|
75 (82.4%)
|
16 (17.6%)
| |
|
Radiologic
|
Negative
|
225 (97.8%)
|
5 (2.2%)
|
< 0.001
|
|
PALNM
|
Positive
|
19 (57.6%)
|
14 (42.4%)
| |
|
Radiologic DM
|
Negative
|
229 (95.0%)
|
12 (5.0%)
|
< 0.001
|
|
Other than PALNM
|
Positive
|
15 (68.2%)
|
7 (31.8%)
| |
|
Tumor location
|
Colon
|
107 (93.0%)
|
8 (7.0%)
|
0.882
|
| |
Rectum
|
137 (92.6%)
|
11 (7.4%)
| |
|
Operative
| | | | |
|
Surgical procedure
|
Open
|
6 (60.0%)
|
4 (40.0%)
|
0.003
|
| |
Laparoscopy
|
238 (94.1%)
|
15 (5.9%)
| |
|
Operative time (min)
|
< 180
|
197 (93.8%)
|
13 (6.2%)
|
0.232
|
| |
≥ 180
|
47 (88.7%)
|
6 (11.3%)
| |
|
Pathologic
| | | | |
|
Tumor size (cm)
|
< 5
|
130 (96.3%)
|
5 (3.7%)
|
0.03
|
| |
≥ 5
|
113 (89.0%)
|
14 (11.0%)
| |
|
Lymphovascular
|
Negative
|
203 (97.6%)
|
5 (2.4%)
|
< 0.001
|
|
Invasion
|
Positive
|
41 (74.5%)
|
14 (25.5%)
| |
|
Perineural
|
Negative
|
148 (94.9%)
|
8 (5.1%)
|
0.146
|
|
Invasion
|
Positive
|
96 (89.7%)
|
11 (10.3%)
| |
|
Differentiation
|
w/d, m/d
|
227 (93.4%)
|
16 (6.6%)
|
0.031
|
| |
p/d
|
7 (70.0%)
|
3 (30.0%)
| |
- Data are presented as mean ± standard deviation or number (percentage)
- PALNM Paraaortic lymph node metastasis; BMI Body mass index; ASA American Society of Anesthesiologists; CEA Carcinoembryonic antigen; DM Distant metastasis; w/d Well differentiated; m/d Moderately differentiated; p/d Poorly differentiated
