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  • Title: Hearing assessment-reliability, accuracy, and efficiency of automated audiometry.
    Author: Swanepoel de W, Mngemane S, Molemong S, Mkwanazi H, Tutshini S.
    Journal: Telemed J E Health; 2010 Jun; 16(5):557-63. PubMed ID: 20575723.
    Abstract:
    OBJECTIVE: This study investigated the reliability, accuracy, and time efficiency of automated hearing assessment using a computer-based telemedicine-compliant audiometer. MATERIALS AND METHODS: Thirty normal-hearing subjects and eight hearing-impaired subjects were tested with pure-tone air conduction audiometry (125-8,000 Hz) in a manual and automated configuration in a counterbalanced manner. For the normal-hearing group each test was repeated to determine test-retest reliability and recording time, and preference for threshold-seeking method (manual vs. automated) was documented. RESULTS: Test-retest thresholds were not significantly different for manual and automated testing. Manual audiometry test-retest correspondence was 5 dB or less in 88% of thresholds compared to 91% for automated audiometry. Thresholds for automated audiometry did not differ significantly from manual audiometry with 87% of thresholds in the normal-hearing group and 97% in the hearing-impaired group, corresponding within 5 dB or less of each other. The largest overall average absolute difference across frequencies was 3.6 +/- 3.9 dB for the normal-hearing group and 3.3 +/- 2.4 for the hearing-impaired group. Both techniques were equally time efficient in the normal-hearing population, and 63% of subjects preferred the automated threshold-seeking method. CONCLUSIONS: Automated audiometry provides reliable, accurate, and time-efficient hearing assessments for normal-hearing and hearing-impaired adults. Combined with an asynchronous telehealth model it holds significant potential for reaching underserved areas where hearing health professionals are unavailable.
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