Year: 1980
Type: conference-abstract
Abstract: Fifty-two subjects (51 males and 1 female) employed by a major medical center as paramedicals in ambulance service were evaluated with pure tone audiometry from 0.25 to 8 kHz. All subjects were asymptomatic for hearing problems. Amount of time on the ambulance service ranged from a mean of 2.2 years for the youngest age group (18-24 years) to 15 years for the oldest age group (55–59 years). Specific heating threshold was established for each frequency for each subject. Hearing thresholds for each age/sex/frequency category were compared to presbycusis standards derived from Spoor [Int, Audiol. 5, 48–57 (1967)] and Hinchcliff [Acoustica 9, 303–308 (1959)]. Deviations from derived standard values in standard deviation units were averaged across age. Though the amount of hearing loss was not great, data suggested hearing was poorer than mean expectations for the given frequencies with larger differences noted at 0.25, 0.5, 6, and 8 kHz. Preliminary interpretation of data is guarded because of lack of regional-based presbycusis norms.
DOI: 10.1121/1.2018305
Authors: David W. Johnson, Robert J. Hammond, Robert E. Sherman
Institution: Hennepin County Medical Center
Language: English
Subfield: Sensory Systems
Field: Neuroscience
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2023745467