OBJECTIVE: Detailed information on the hearing threshold levels (HTLs) of young Australians was gathered as part of a large-scale study of the relationship between HTL and leisure-noise exposure in young Australians. DESIGN: HTL data for the study population (18-35 year olds) was carefully collected, as well as otoscopy, tympanometry, contra-lateral acoustic reflexes, and otoacoustic emissions (transient and distortion product), together with a comprehensive hearing health history - both past and present. STUDY SAMPLE: The sample cohort consisted of 1407 individuals, females and males. RESULTS: Prior to analysis, HTL data were filtered according to both a 'Low' and 'High' set of exclusion criteria. The results obtained for both high-screen and low-screen datasets were around +5 dB above the traditionally accepted values of audiometric zero. This is consistent with previous published reports. CONCLUSION: Comparison with 'ISO 7029 Acoustics: Statistical distribution of hearing thresholds as a function of age' indicated that threshold values for this dataset have a similar distribution to those of the Standard. This data provides a suitable reference HTL ('normative') database for young Australians.
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Williams et al. (2014) studied this question.
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