Table 2 Endoscopic findings in patients with undifferentiated-type gastric cancer according to Helicobacter pylori infection status
From: Effect of Helicobacter pylori infection on malignancy of undifferentiated-type gastric cancer
UD-E (A) | UD-I (B) | UD-U (C) | Significance | |
|---|---|---|---|---|
Location | p = 0.048 (A vs B vs C) p = 0.002 (B vs C) NS (A vs B, C vs A) | |||
Upper third | 2 (7.1%) | 2 (5.3%) | 1 (4.2%) | |
Middle third | 9 (32.1%) | 22 (57.9%) | 5 (20.8%) | |
Lower third | 17 (60.8%) | 14 (36.8%) | 18 (75.0%) | |
Macroscopic appearance | NS (A vs B vs C) NS (A vs B, B vs C, C vs A) | |||
Elevated | 1 (3.6%) | 2 (5.3%) | 0 (0%) | |
Flat or depressed | 27 (96.4%) | 36 (94.7%) | 24 (100%) | |
Color tone | p < 0.001 (A vs B vs C) p < 0.001 (B vs C, C vs A) NS (A vs B) | |||
Discolored dominant | 16 (57.1%) | 16 (42.1%) | 24 (100%) | |
Reddish dominant | 12 (42.9%) | 22 (57.9%) | 0 (0%) |