Table 4.
Clinicopathologic features of submucosa-invasive early gastric carcinoma according to histological type n (%)
| Variable | MT, n = 24 | Pure U, n = 20 | Pure D, n = 89 | P value | P (Bonferroni corrected) |
| Age (yr) | 0.008 | MT vs PU, 0.423 | |||
| ≤ 60 | 14 (58.3) | 14 (70.0) | 32 (36.0) | MT vs PD, 0.048 | |
| > 60 | 10 (41.7) | 6 (30.0) | 57 (64.0) | PU vs PD, 0.005 | |
| Gender | < 0.001 | MT vs PU, 0.069 | |||
| Male | 15 (62.5) | 7 (35.0) | 70 (78.7) | MT vs PD, 0.104 | |
| Female | 9 (37.5) | 13 (65.0) | 19 (21.3) | PU vs PD, < 0.001 | |
| Size (cm) | 2.6 ± 1.3 | 2.8 ± 1.4 | 2.3 ± 1.1 | 0.166 | |
| Location | 0.019 | MT vs PU, 0.128 | |||
| U | 5 (20.8) | 1 (5.0) | 31 (34.8) | MT vs PD, 0.191 | |
| M/L | 19 (79.2) | 19 (95.0) | 58 (65.2) | PU vs PD, 0.008 | |
| Gross type | 0.028 | MT vs PU, 0.199 | |||
| Elevated | 6 (25.0) | 2 (10.0) | 35 (39.3) | MT vs PD, 0.195 | |
| Flat/depressed | 18 (75.0) | 18 (90.0) | 54 (60.7) | PU vs PD, 0.012 | |
| Ulcer | 0.369 | ||||
| Absent | 5 (20.8) | 7 (35.0) | 32 (36.0) | ||
| Present | 19 (79.2) | 13 (65.0) | 57 (64.0) | ||
| H. pylori infection | 0.997 | ||||
| Absent | 7 (29.2) | 6 (30.0) | 26 (29.2) | ||
| Present | 17 (70.8) | 14 (70.0) | 63 (70.8) | ||
| LV invasion | 0.325 | ||||
| Absent | 15 (62.5) | 15 (75.0) | 69 (77.5) | ||
| Present | 9 (37.5) | 5 (25.0) | 20 (22.5) | ||
| LNM | 0.008 | MT vs PU, 0.375 | |||
| Absent | 15 (62.5) | 12 (60.0 ) | 76 (85.4) | MT vs PD, 0.012 | |
| Present | 9 (37.5) | 8 (40.0) | 13 (14.6) | PU vs PD, 0.009 |
MT: Mixed-type; PU: Pure undifferentiated; PD: Pure differentiated; U: Upper; M/L: Middle/lower; LV: Lymphovascular; LNM: Lymph node metastasis.