standard threshold shift


Also found in: Acronyms.

standard threshold shift

A change in hearing threshold, relative to the baseline audiogram for a particular employee, of an average of 10 decibels (dB) or more at 2000, 3000, and 4000 hertz (Hz) in one or both ears.
References in periodicals archive ?
Other potentially important audiometric indicators, such as standard threshold shift (STS) rates and STS laterality, have not been examined.
Standard threshold shift (STS), the number of completed audiograms (A), and the total number of subjects who had at least two completed audiograms in the experimental and control group STS* A Subjects R L B T n (%) n (%) Experimental 1 7 12 20 1,022 (1.
Therefore, a need for initial site evaluations and for baseline hearing assessments has been established, as well as the need for annual audiograms to evaluate for standard threshold shift.
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