Evaluation of intraoperative radiotherapy for gastric carcinoma with D2 and D3 surgical resection

Table 3 The 5-yr survival rate of patients with operation combined with intraoperative radiotherapy (IORT) in stage III

Groups	n	D2 resection						D3 resection
		n	1 yr	2 yr	3 yr	4 yr	5 yr	n	1 yr	2 yr	3 yr	4 yr	5 yr
IORT	48	9	100%	100%	87.5%	87.5%	60%	39	100%	100%	93.1%	85.5%	61%
Operation	244	114	81.6%	70.4%	52.3%	43.3%	35.7%	128	92.1%	85%	66.5%	62.2%	56.3%
P			< 0.05	< 0.001	< 0.001	< 0.001	< 0.005		> 0.50	> 0.10	< 0.001	< 0.005	> 0.05