Table 2 The characteristics and clinical data of the patients in the ESD and radical operation groups
ESD group (tumour size, 0.8–5.0 cm) | Radical operation group (tumour size, 1.1–5.7 cm) | P | |
|---|---|---|---|
N | 29 | 59 | |
Mean age (years) | 65.3 ± 7.5 | 45.8 ± 6.7 | <0.05 |
Mean size of the lesion (cm) | 2.7 ± 1.9 | 3.5 ± 1.6 | NS |
Frequency of underlying cardiopulmonary disease (%) | 17.2 | 5.1 | <0.01 |
Frequency of anticoagulant therapy (%) | 13.8 | 1.7 | <0.01 |
Length of operation (min) | 53 ± 7.9 | 78 ± 11.4 | <0.05 |
Depth of invasion (mucosa: submucosa:muscularis propria) | 27:02:00 | 47:12:00 | <0.05 |
Hospitalisation (d) | 14.3 ± 3.7 | 21.7 ± 9.3 | <0.05 |
Oncological clearance (%) | 93.1 | 100 | NS |
Incidence of complications (%) | 6.9 | 15.3 | <0.05 |