Table 1.

The prognostic impact in N0 gastric cancer patients depending on different cut-off numbers of HLNs

Cut-off number of HLNs	P-valuea
16	<0.001
17	0.002
18	0.039
19	0.008
20	0.002
21	0.013
22	0.047
23	0.144
24	0.164
25	0.098
26	0.238
27	0.305
28	0.807
29	0.858
30	0.596
31	0.428
32	0.209
33	0.266
34	0.201
35	0.446
36	0.499
37	0.537
38	0.223
39	0.803
40	0.728
41	0.619
42	0.842
43	0.998
44	0.934
45	0.826
46	0.628
47	0.387
48	0.508
49	0.501
50	0.783

HLNs: harvested lymph nodes

^a P-values were calculated by the log-rank test for survival curves that were generated by the Kaplan–Meier method, and the statistically significant values (P < 0.05) are in bold