Table 5.

Analysis of prognostic risk factors in surgery group.

	Hazard ratio	p-values
No surgery	1	< 0.001
Local tumour destruction	0.103	0.075
Gastrectomy:
Partial, subtotal, hemi	0.055	< 0.001
Near total or total	0.097	< 0.001
With removal of a portion of oesophagus	0.105	< 0.001
With resection of other organs	0.079	< 0.001