Table 2. The 3-year and 5-year OS rate of each subgroup of LNR.

Subgroup No.	LNR	No. of patients	3-year OS (%)	5-year OS (%)	P-value*
1	0	84	86.9	84.2
2	0.01–0.10	69	78.3	62.1	0.003
3	0.11–0.20	47	44.7	31.1	<0.001
4	0.21–0.30	23	52.2	33.2	0.832
5	0.31–0.40	19	26.3	6.6	0.107
6	0.41–0.50	11	27.3	13.6	0.684
7	0.51–0.60	5	6	2	0.122
8	0.61–0.70	3	0	0	0.004
9	0.71–0.80	1	0	0	0.182
10	0.81–0.90	3	0	0	0.515

LNR = lymph node ratio; OS = overall survival.

^*P-value of each neighborhood subgroup using the log-rank test.