Table 2.

Staging criteria of positive lymph nodes, metastatic lymph node ratio and log odds of positive lymph nodes classifications n (%)

Grade	MLR		LODDS		pN
0	Nr = 0	139 (32.6)	Nr < -1	129 (30.2)	0	139 (32.6)
1	0 < Nr ≤ 0.2	79 (18.5)	-1 ≤ Nr < -0.5	87 (20.4)	1-2	78 (18.3)
2	0.2 < Nr ≤ 0.4	58 (13.6)	-0.5 ≤ Nr < 0	85 (19.9)	3-6	94 (22.0)
3/3a	0.4 < Nr ≤ 0.7	104 (24.4)	0 ≤ Nr < 0.5	76 (17.8)	7-15	86 (20.1)
4/3b	0.7 < Nr ≤ 1	47 (11.0)	Nr ≥ 0.5	50 (11.7)	> 15	30 (7.0)

MLR: Metastatic lymph node ratio; LODDS: Log odds of positive lymph nodes; pN: Positive lymph nodes.