Table 2.

Distribution of patients’ characteristics by lymph node involvements

Characteristics	Lymph node involvements
	N0(n)	N1(n)	P value
Age			0.976
<28 yr	11	9
≥ 28 yr	12	10
Gender			0.034
Male	16	7
Female	7	12
Histology			0.477
Embryonal	8	8
Alveolar	11	10
Pleomorphic + NOS	4	1
Primary site			0.429
Parameningeal	13	13
Non-Parameningeal	10	6
Primary tumor size			0.711
≤ 5 cm	11	8
> 5 cm	12	11

NOS, not otherwise specified