Table I.
Demographic data of patients with cT1 gastric cancer.
| Correct group (n=163) | Underestimate group (n=30) | P-value | |
|---|---|---|---|
| Age (years) | 68.0±10.2 | 66.0±13.1 | 0.777 |
| Male/female | 124/39 | 21/9 | 0.479 |
| Body mass index | 22.4±3.1 | 22.0±2.5 | 0.596 |
| Tumor size (mm) | 31.8±21.0 | 46.2±31.7 | 0.012 |
| Tumor location | |||
| Upper third | 27 (16.6%) | 10 (33.3%) | 0.047 |
| Middle third | 60 (36.8%) | 12 (40.0%) | |
| Lower third | 76 (46.6%) | 8 (26.7%) | |
| Circumferences | |||
| Ant/post | 37/61 | 5/15 | 0.278 |
| Gre/less | 29/80 | 4/18 | 0.406 |
| Tumor depth | |||
| pT2 | 17 (56.7%) | ||
| pT3 | 11 (36.7%) | ||
| pT4 | 2 (6.7%) | ||
| Lymph nodal metastasis | |||
| cN0 | 161 (84.7%) | 29 (100%) | 0.493 |
| cN1 | 3 (15.3%) | 0 (0%) | |
| Gross type | |||
| Elevated | 47 (28.7%) | 5 (31.3%) | 0.969 |
| Flat | 12 (7.3%) | 1 (6.3%) | |
| Depressed | 105 (64.0%) | 10 (62.5%) | |
| Histology | |||
| Intestinal type | 115 (70.6%) | 15 (50.0%) | 0.027 |
| Diffuse type | 48 (29.5%) | 15 (50.0%) | |
| Stroma | |||
| Int | 46 (66.7%) | 13 (44.8%) | 0.005 |
| Med | 13 (18.8%) | 3 (10.3%) | |
| Sci | 10 (14.5%) | 13 (44.8%) | |
| Infiltrative growth | |||
| a | 11 (15.9%) | 1 (3.5%) | <0.001 |
| b | 48 (69.6%) | 13 (44.8%) | |
| c | 10 (14.5%) | 15 (51.7%) | |
| Lymphatic invasion | |||
| ly (−) | 127 (77.4%) | 8 (27.6%) | <0.001 |
| ly (+) | 37 (22.6%) | 21 (72.4%) | |
| Venous invasion | |||
| v (−) | 134 (81.7%) | 7 (24.1%) | <0.001 |
| v (+) | 30 (18.3%) | 22 (75.9%) |
Data are expressed as the mean ± SD.