Table 4. Sensitivity and specificity of sonotubometry decibel elevation for ETD and normal (dB)

	Sensitivity	Specificity	Sensitivity+specificity
5.628	0.952	0.634	1.587
5.818	0.946	0.634	1.580
6.010	0.932	0.659	1.591
6.135	0.932	0.683	1.615
6.310	0.932	0.707	1.639
6.435	0.925	0.732	1.657
6.625	0.918	0.732	1.650
6.755	0.912	0.732	1.643
6.945	0.898	0.732	1.630
7.190	0.891	0.732	1.623
7.375	0.844	0.732	1.616

ETD: dilatory eustachian tube dysfunction.