Table 3 Clinicopathological characteristics of the lesions of the distinct border group and the indistinct border group after chromoendoscopy with indigo carmine dye added to acetic acid
| Â | Distinct border group (n = 127) | Indistinct border group (n = 24) | P value |
|---|---|---|---|
Tumor size | Â | Â | 0.232 |
   ≤ 2 cm | 80 | 12 |  |
   > 2 cm | 47 | 12 |  |
Location | Â | Â | 0.788 |
   Upper third of the stomach | 10 | 1 |  |
   Middle third of the stomach | 51 | 9 |  |
   Lower third of the stomach | 66 | 14 |  |
Macroscopic type | Â | Â | 0.034 |
   Flat/Elevated | 59 | 5 |  |
   Depressed | 52 | 12 |  |
   Excavated | 16 | 7 |  |
Histopathological diagnosis | Â | Â | 0.002 |
   Differentiated | 97 | 11 |  |
   Undifferentiated | 30 | 13 |  |
Depth | Â | Â | 0.273 |
   Mucosal | 93 | 15 |  |
   Submucosal | 30 | 9 |  |
   Advanced | 4 | 0 |  |