The impact of the initial operation of PTC in children on recurrence: 9-year experience in a single center

Table 4 Relationship between clinical N1b stage, CND, and LND

Clinical N1b stage	Neck dissection	N	CLNM [n/%]		LLNM [n/%]
Clinical N1b stage	Neck dissection	N	Ipsilateral^a	Contralateral	Ipsilateral^a	Contralateral	LNM [n/%]
cN1b (−)	CND	23	13/56.52%	6/26.09%	–	–	13/56.52%
	Unilateral CND	10	5/50.00%	–	–	–
	Bilateral CND	13	8/61.54%	6/46.15%	–	–
cN1b (+)	LND	41	39/95.12%	33/80.49%	39/95.12%	17/85.00%	39/95.12%^b
	Unilateral LND	21	20/95.24%	16/76.19%	20/95.24%	–
	Bilateral LND	20	19/95.00%	17/85.00%	19/95.00%	17/85.00%
Total		64	52/81.25%^c	39/60.94%	39/60.94%^d	17/26.56%

^aIn patients with bilateral lesions, the larger side of the tumor is regarded as ipsilateral and the smaller side of the lesion as contralateral
^bvs LNM, χ2 = 14.411, p = 0.000
^cvs Contralateral CLNM，χ2 = 6.425, p = 0.011
^dvs Contralateral LLNM，χ2 = 15.365, p = 0.011

ISSN: 1477-7819