Table 1 The tumour characteristics of the patients in the ESD and radical operation groups
ESD group | Radical operation group | P | |
|---|---|---|---|
n | 29 | 59 | |
Location of the tumour (%) | |||
Posterior wall | 6 (20.7) | 11 (18.6) | NS |
Anterior wall | 7 (24.1) | 19 (32.2) | NS |
Lesser curvature | 9 (31.1) | 16 (27.1) | NS |
Greater curvature | 7 (24.1) | 13 (22) | NS |
Gross type of the tumour (%) | |||
Superficial depressed type | 17 (58.6) | 33 (55.9) | NS |
Superficial elevated type | 12 (41.4) | 26 (44.1) | NS |