Table 2 White light imaging and pathological features of the training set.
Variables | CR (n = 385) n (%) | NCR (n = 70) n (%) | Total (n = 455) n (%) | p value |
|---|---|---|---|---|
Ulceration | 39 (10.1%) | 22 (31.4%) | 61 (13.4%) | < 0.01 |
Fold concentration | 16 (4.2%) | 9 (12.9%) | 25 (5.5%) | < 0.01 |
Remarkable redness | 26 (6.7%) | 15 (21.4%) | 41 (9.0%) | < 0.01 |
Surface nodularity | 67 (17.4%) | 17 (24.3%) | 84 (18.5%) | > 0.05 |
Marginal elevation | 37 (9.6%) | 15 (21.4%) | 52 (11.4%) | < 0.01 |
Scar | 29 (7.5%) | 4 (5.7%) | 33 (7.3%) | > 0.05 |
Spontaneous bleeding | 11 (2.9%) | 5 (7.1%) | 16 (3.5%) | < 0.05 |
Whitish mucosal change | 21 (5.5%) | 9 (12.9%) | 30 (6.6%) | < 0.05 |
Gross appearance | ||||
Elevated | 174 (45.2%) | 30 (42.9%) | 204 (44.8%) | > 0.05 |
Flat | 31 (8.1%) | 4 (5.7%) | 35 (7.7%) | |
Depressed | 180 (46.8%) | 36 (51.4%) | 216 (47.5%) | |
Size (mm) | ||||
≤ 20 | 192 (49.9%) | 17 (24.3%) | 209 (45.9%) | < 0.05 |
20–30 | 131 (34.0%) | 28 (40.0%) | 159 (34.9%) | |
> 30 | 62 (16.1%) | 25 (35.7%) | 87 (19.1%) | |
Hp infection | 52 (13.5%) | 16 (22.9%) | 68 (14.9%) | < 0.05 |
Histology | ||||
Differentiated | 336 (87.3%) | 25 (35.7%) | 361 (79.3%) | < 0.01 |
Undifferentiated | 49 (12.7%) | 45 (64.3%) | 94 (20.7%) | |
Tumor location | ||||
Upper 1/3 of stomach | 23 (6.0%) | 14 (20.0%) | 37 (8.1%) | < 0.05 |
Mid 1/3 of stomach | 156 (40.5%) | 31 (44.3%) | 187 (41.1%) | |
Lower 1/3 of stomach | 206 (53.5%) | 25 (35.7%) | 231 (50.8%) | |
Depth of invasion | ||||
Mucosa | 362 (94.0%) | 24 (34.3%) | 386 (84.8%) | < 0.01 |
Submucosa | 23 (6.0%) | 46 (65.7%) | 69 (15.2%) | |
