Table 1. HfCHL test properties.

	Scenario 1 (Disease group = All IOD)	Scenario 2 (Disease group = Type 2 IOD)
Cutoff value for HfCHL test	10 dB	10 dB
Sensitivity	83%	89%
Specificity	92%	80%
Pre-test probability	25%	11%
Post-test probability	78%	35%
Likelihood ratio	10.2	4.5
AUC (SE)	0.901 (0.019)	0.865 (0.026)

IOD: Incomplete Ossicular Discontinuity; HfCHL: High-frequency Conductive Hearing Loss; AUC: Area Under the receiver operating characteristics (ROC) Curve; SE: Standard Error.