Table 5. CUNR Index points for ipsilateral LLNM.

Variables	CUNR	Odds ratio	Index points
Ipsilateral lateral compartment LNM risk factors Capsule invasion (yes/no) Primary tumor location(upper/middle or lower) Ipsilateral central compartment LNM number (≥3/<3) Ipsilateral central compartment LNM rate (≥56%/<56%) Contralateral lateral compartment LNM risk factors Contralateral central compartment LNM (≥3/<3) Contralateral central compartment LNM rate (≥69%/<69%)	C U N R	2.683 2.261 2.784 7.950 9.865 64.068	16/0 3/0 2/0 3/0 8/0 74/0 10/0 64/0