Correlation of tumor-positive ratio and number of perigastric lymph nodes with prognosis of gastric carcinoma in surgically-treated patients

Table 1 Correlation between lymph node metastatic ratio and survival years

Ratio of positive	n	Survival years					P
lymph nodes		1	2	3	4	5
< 20%	51	51	49	45	39	36	< 0.05
> 21%	118	104	87	66	43	14a

^aP<0.05 vs the group with lymph node metastatic ratio less than 20%.