Table 1. Patient demographics and clinicopathologic characteristics.

Variable	Total	LN metastasis		P-value	Lateral LN metastasis		P-value
		(+)	(-)		(+)	(-)
Number of patients	52	32 (61.5%)	20 (38.5%)		19 (36.5%)	33 (63.5%)
Age	41.5 (15–74)	37 (15–66)	42.5 (16–74)	0.328	35 (15–60)	43 (16–74)	0.139
Gender
Male	12 (23.1%)	7	5	0.795	6	13	0.270
Female	40 (76.9%)	25	15		6	27
Primary tumor size (mm)	23 (13–40)	23 (13–40)	23 (14–37)	0.563	20 (13–40)	23 (14–37)	0.895
Distant metastasis	4 (7.7%)	4	0	0.100	4	0	0.014

Note–Unless otherwise specified, the data are the medians (range).

LN, lymph node.