Table 1 Baseline characteristics.
From: Possible indication of endoscopic resection in undifferentiated early gastric cancer
Total (n = 376) | |
|---|---|
Age, years, mean (SD) | 60.2 (12.1) |
Male gender, n (%) | 199 (52.9) |
Tumor location, n (%) | |
Lower third | 143 (38.0) |
Middle third | 194 (51.6) |
Upper third | 39 (10.4) |
Lesion size, mm, mean (SD) | 32.4 (19.7) |
Signet ring cell type, n (%) | 233 (62.0) |
Atrophic gastritis, n (%) | |
Mild | 118 (31.4) |
Moderate | 207 (55.1) |
Severe | 51 (13.6) |
Gross type, n (%) | |
Elevated | 26 (6.9) |
Flat | 61 (16.2) |
Depressed | 289 (76.9) |
Surface configuration, n (%) | |
Excavated ulceration | 151 (40.2) |
Scar deformity | 155 (41.2) |
Ulcer-related findings | 246 (65.4) |
Erythema | 350 (93.1) |
Discoloration | 91 (24.2) |
Nodularity | 85 (22.6) |
Depression | 127 (33.8) |
Erosion | 124 (33.0) |
Pathologic factors | |
Submucosal invasion, n (%) | 158 (42.0) |
Lymphovascular invasion, n (%) | 28 (7.4) |
Perineural invasion, n (%) | 22 (5.9) |
Depth of invasion Signet ring cell type: M1/M2/SM1/deep SM, n (%) | 93/64/10/66 |
(39.9/27.5/4.3/28.3) | |
Poorly differentiated type: M1/M2/SM1/deep SM, n (%) | 31/30/11/71 |
(21.7/21.0/7.7/49.6) | |
Within expanded indication, n (%) | 59 (15.7) |
Lymph node metastasis, n (%) | 37 (9.8) |
