Table 1.
Characteristics of Baseline Demographics and Tumor for the Propensity Score Matched Patients
| Characteristic | ESD group (n=175) | Gastrectomy group (n=100) | p-value |
|---|---|---|---|
| Age, yr | 61.7±8.7 | 60.5±9.7 | 0.282 |
| Male sex | 129 (73.7) | 73 (73.0) | 0.968 |
| Presence of comorbidity | 88 (50.3) | 43 (43.0) | 0.322 |
| Hypertension | 65 (37.1) | 28 (28.0) | |
| Cardiac disease | 6 (3.4) | 9 (9.0) | |
| Diabetes mellitus | 28 (16.0) | 13 (13.0) | |
| CVA | 6 (3.4) | 3 (3.0) | |
| Respiratory disease | 1 (0.6) | 1 (1.0) | |
| Chronic renal failure | 5 (2.9) | 2 (2.0) | |
| Chronic liver disease | 8 (4.6) | 5 (5.0) | |
| Other malignancies | 7 (4.0) | 4 (4.0) | |
| Others | 3 (1.7) | 3 (3.0) | |
| ASA grade | |||
| 1 | 90 (51.4) | 54 (54.0) | 0.534 |
| 2 | 61 (34.9) | 28 (28.0) | |
| 3 | 23 (13.1) | 18 (18.0) | |
| 4 | 1 (0.6) | 0 | |
| Lesion type | |||
| Elevated | 90 (51.4) | 14 (14.0) | <0.001 |
| Flat | 13 (7.4) | 24 (24.0) | |
| Depressed | 72 (41.1) | 62 (62.0) | |
| SM invasiona) | 3 (1.7) | 1 (1.0) | 0.152 |
| SM1 invasion | 3 (1.7) | 1 (1.0) | |
| Ulceration | 29 (16.6) | 58 (58.0) | <0.001 |
| Lesion size | |||
| Major axis | 12.4±6.9 | 15.2±8.7 | 0.007 |
| Minor axis | 8.8±4.9 | 12.0±6.6 | <0.001 |
| Lymphatic invasion | 0 | 0 | 1.000 |
| Vascular invasion | 0 | 0 | |
| Absolute criteria | 124 (70.9) | 71 (71.0) | |
| Expanded criteria | 51 (29.1) | 29 (29.0) |
Values are presented as mean±SD or number (%).
ESD, endoscopic submucosal dissection; CVA, cerebrovascular accident; ASA, American Society of Anesthesiologists;
a)
Depth of submucosal invasion (SM1: a submucosal invasion less than one-third of the depth of the submucosal layer).