Performance evaluation of hearing conservation program data in small companies.
Simpson TH; Stewart M; Hecksel M
Proceedings: 1992 hearing conservation conference, April 1-4, 1992. Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, task order 91-37982, 1992 Apr; :25-32
The performance of hearing conservation program (HCP) data in small companies in the United States was evaluated. Audiograms were selected from the databases of 28 small companies and were assessed for effectiveness in meeting the American National Standards Institute's ANSI S12.13 data requirements on noise. A total of 865 employees qualified for the analysis. Only 11 factories yielded sufficient numbers of audiograms to meet the ANSI minimum requirement of 30 audiograms per data set. Audiometers were calibrated per ANSI and OSHA specifications. Two consultants rated the 28 factories according to HCP performance. Results showed that of 610 ANSI judgments (61 observations and ten statistics), 421 were acceptable, 129 were marginal, and 60 were unacceptable. Only 15 observations demonstrated acceptable ratings on each of ten statistics. Of the 15 factories, only two demonstrated totally acceptable results on consecutive applications. Data sets of factories where both consultants agreed with subjective ratings of HCP performance were presented. The ANSI standards were more pessimistic than the subjective ratings. However, correlation coefficients suggested that frequency specific subscales of the ANSI statistics may provide more consistent agreement between the subjective and objective evaluations. The authors conclude that frequency sensitive information emerging from the ANSI statistics holds promise for more refined analyses of industrial audiometric databases. A list of requirements for application of ANSI S12.13 to large industrial databases was included.
Audiometry; Ear-protectors; Industrial-exposures; Industrial-noise; Noise-induced-hearing-loss; Occupational-exposure; Protective-equipment; Statistical-analysis; Health-standards
Proceedings: 1992 hearing conservation conference, April 1-4, 1992