Table 4. Williams test Y-226 Hz for normal group and unilateral COM group, static compliance peak point change degree

	Normal (%)	Unilateral COM (%)
Type I	23 (57.5)	11 (33.3)
Type II	5 (12.5)	3 ( 9.1)
Type I	3 ( 7.5)	1 ( 3 )
Type IV	5 (12.5)	7 (21.2)
Type V	4 (10 )	11 (33.3)
Total	40 (100)	33 (100)

Values are presented as number (%).COM: chronic otitis media.