Table 2. The 3-year and 5-year OS rates for each LNR group.

LNR stage	LNR group	No. of patients	3-year OS	5-year OS	HR	95% CI
0	LNR = 0	364	89.3%	80.6%	Ref.
1	0 < LNR ≤ 0.1	128	71.4%	63.0%	1.816	1.309–2.519
2		103
	0.1 < LNR ≤ 0.2	49	49.2%	28.7%	4.420	3.005–6.502
	0.2 < LNR ≤ 0.3	22	25.5%	12.7%	6.641	4.005–11.014
	0.3 < LNR ≤ 0.4	7	41.7%	0%	8.866	3.216–24.441
	0.4 < LNR ≤ 0.5	15	35.7%	19.0%	5.252	2.875–9.595
	0.5 < LNR ≤ 0.6	10	40.5%	20.3%	6.307	2.735–14.546
3		10
	0.6 < LNR ≤ 0.7	4	0%	0%	18.465	6.673–51.097
	0.7 < LNR ≤ 0.8	2	0%	0%	21.250	5.112–88.335
	0.8 < LNR ≤ 0.9	1	0%	0%	17.324	2.379–126.155
	0.9 < LNR ≤ 1.0	3	0%	0%	33.186	10.194–108.037

LNR = lymph node ratio; OS = overall survival; HR = hazard ratio; CI = confidence interval.