Table 2. Sonotubometry result according to Williams test (Y-226 Hz)

Normal (SD) ETD (SD) p-value
Sonotubometry duration time (ms) 378.50 (177.404) 223.13 (183.972) 0.000
Sonotubometry elevation (dB) 19.031 (8.169) 10.734 (9.253) 0.001
Sonotubometry dimension (cm2) 0.360 (0.2864) 0.170 (0.1880) 0.000
ETD: Eustachian tube dysfunction.