Table 3.

Morphological and pathological diagnosis of vocal fold leukoplakia.

	Flat and smooth		Elevated and smooth		Rough		p
	Observer 1	Observer 2	Observer 1	Observer 2	Observer 1	Observer 2	Observer 1	Observer 2
Non-dysplasia	17	13	20	22	2	4
Mild-dysplasia	8	10	51	46	13	16	<0.001a	<0.001a
Moderate-dysplasia	0	3	39	32	12	16	<0.001b	<0.001b
Severe-dysplasia	0	2	36	35	109	108	<0.001c	<0.001c
Carcinoma	0	0	8	10	60	58	<0.001d	<0.001d
Total	25	28	154	145	196	202

^aKruskal–Wallis test followed by Nemenyi test, flat and smooth vs. elevated and smooth.

^bKruskal–Wallis test followed by Nemenyi test, flat and smooth vs. rough.

^cKruskal–Wallis test followed by Nemenyi test, elevated and smooth vs. rough.

^dSpearman Correlation Analysis.