Table 6.

Net benefit of the Mayo criteria and nomogram scoring system in predicting metastatic lymph nodes in the training cohort.

Threshold (%)	Net benefit		Advantage of nomogram
	Mayo(%)	Nomogram(%)	Net benefit (%)	Net reduction (%)
0	8.0	8.0	0.0	0.0
1	7.1	7.1	0.0	0.0
2	6.3	6.1	−0.2	−9.8
3	5.6	5.8	0.2	6.5
4	5.0	5.5	0.5	12.0
5	4.3	5.3	1.0	19.0
6	3.6	5.0	1.4	21.9
7	2.8	4.7	1.9	25.2
8	2.1	4.4	2.3	26.5
9	1.4	4.1	2.7	27.3
10	0.6	3.8	3.2	28.8
11	0.0	3.5	3.5	28.3
12	0.0	3.2	3.2	23.5
13	0.0	2.9	2.9	19.4
14	0.0	2.5	2.5	15.4
15	0.0	2.2	2.2	12.5
16	0.0	1.9	1.9	10.0
17	0.0	1.5	1.5	7.3
18	0.0	1.1	1.1	5.0
19	0.0	0.8	0.8	3.4
20	0.0	0.4	0.4	1.6