Table 1.

The comparison of the variables between the malignant and benign groups.

	Laryngeal pathology		P
	Malignant (n = 31)	Benign (n = 28)
	n (%)	n (%)
Serology, n (%)
Positive	28 (90.3)	27 (96.4)	0.614
Negative	3 (9.7)	1 (3.6)
Immunohistochemistry	0