Effects of Ultrasonic Use on Hearing Loss in Dental Hygienists: A matched pairs design study

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Figure 1.
Preliminary screening survey to determine study eligibility

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Table I.
Summary of variables utilized in the data analyses (n=38)
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Table II.
Multivariate regression model
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Table III.
Univariate analysis of predictor variable and hearing threshold outcome at specific frequencies tested in audiometry^†
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Table IV.
Paired t-test results of comparison between the groups. Matched on age (+/− 1 year).^†
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Table V.
Multiple linear regression including audiometric frequency hearing thresholds^†