Table 1.
Demographic and clinical characteristics of the enrolled patients.
| Characteristics | Total Population | N0 | N1 | N2 | N3a | N3b | |
|---|---|---|---|---|---|---|---|
| (n = 185) | (n = 49) | (n = 31) | (n = 31) | (n = 52) | (n = 22) | ||
| Age, median (range) | 62 (22–86) | 61 (28–81) | 63 (36–80) | 62 (24–73) | 62 (26–86) | 66 (22–79) | |
| Gender, n(%) | 185 | 49 | 31 | 31 | 52 | 22 | |
| Male | 127 (68.6) | 40 (81.6) | 22 (71.0) | 20 (64.5) | 32 (61.5) | 13 (59.1) | |
| Female | 58 (31.4) | 9 (18.4) | 9 (29.0) | 11 (35.5) | 20 (38.5) | 9 (40.9) | |
| Histopathological Type, n (%) | |||||||
| adenocarcinoma | 144 (77.8) | 42 (85.7) | 26 (83.9) | 25 (80.6) | 41 (78.8) | 10 (45.5) | |
| mixed adenocarcinoma | 41 (22.2) | 7 (14.3) | 5 (16.1) | 6 (19.4) | 11 (21.2) | 12 (54.5) | |
| Lauren Type, n (%) | |||||||
| intestinal type | 64 (34.6) | 23 (46.9) | 14 (45.2) | 12 (38.7) | 14 (26.9) | 1 (4.5) | |
| diffuse type | 51 (27.6) | 14 (28.6) | 5 (16.1) | 9 (29.0) | 13 (25) | 10 (45.5) | |
| mixed type | 70 (37.8) | 12 (24.5) | 12 (38.7) | 10 (32.3) | 25 (48.1) | 11 (50.0) | |
| Differentiation, n (%) | |||||||
| low | 85 (45.9) | 18 (36.7) | 10 (32.3) | 12 (38.7) | 28 (53.8) | 17 (77.3) | |
| middle-low | 58 (31.4) | 11 (22.4) | 10 (32.3) | 13 (41.9) | 19 (36.5) | 5 (22.7) | |
| middle | 36 (19.5) | 16 (32.7) | 11 (35.4) | 5 (16.1) | 4 (7.7) | 0 (0.0) | |
| high | 6 (3.2) | 4 (8.2) | 0 (0.0) | 1 (3.3) | 1 (2.0) | 0 (0.0) | |
| Vascular Tumor Thrombus, n (%) | |||||||
| not contain | 34 (18.4) | 25 (51) | 8 (25.8) | 1 (3.3) | 0 (0.0) | 0 (0.0) | |
| contain | 126 (68.1) | 12 (24.5) | 18 (58.1) | 25 (80.6) | 51 (98.1) | 20 (91.0) | |
| uncertain | 22 (11.9) | 12 (24.5) | 4 (12.9) | 5 (16.1) | 0 (0.0) | 1 (4.5) | |
| multiple tumors | 3 (1.6) | 0 (0.0) | 1 (3.2) | 0 (0.0) | 1 (1.9) | 1 (4.5) | |
| Infiltration depth, n (%) | |||||||
| lamina propria or submucosa | 31 (16.8) | 20 (40.8) | 5 (16.1) | 3 (9.7) | 2 (3.8) | 1 (4.5) | |
| muscularis propria | 23 (12.4) | 9 (18.4) | 6 (19.4) | 3 (9.7) | 4 (7.7) | 1 (4.5) | |
| subserosa | 54 (29.2) | 10 (20.4) | 9 (29.0) | 13 (41.9) | 17 (32.7) | 5 (22.8) | |
| serosal layer | 46 (24.8) | 7 (14.3) | 4 (12.9) | 8 (25.8) | 21 (40.4) | 6 (27.3) | |
| fat tissue outside the serosal layer etc. | 31 (16.8) | 3 (6.1) | 7 (22.6) | 4 (12.9) | 8 (15.4) | 9 (40.9) | |
| Nerve invasion, n (%) | |||||||
| + | 104 (56.2) | 16 (32.7) | 17 (54.8) | 19 (61.3) | 37 (71.1) | 15 (68.2) | |
| – | 61 (33.0) | 30 (61.2) | 14 (45.2) | 7 (22.6) | 7 (13.5) | 3 (13.6) | |
| uncertain | 20 (10.8) | 3 (6.1) | 0 (0.0) | 5 (16.1) | 8 (15.4) | 4 (18.2) | |
| SUVmax_tumor, mean (std) | 7.76 (5.93) | 5.55 (4.41) | 8.66 (5.61) | 8.34 (5.02) | 9.51 (7.57) | 6.48 (3.87) | |
| SUVmax_LN, mean (std) | 2.92 (3.72) | 1.56 (2.28) | 3.32 (3.73) | 3.07 (3.17) | 3.58 (4.96) | 3.60 (2.62) | |
| maximum diameter, mean (std) | 4.81 (2.97) | 3.76 (2.48) | 4.14 (2.43) | 4.82 (2.10) | 4.95 (2.85) | 7.77 (3.89) | |