2014-07-01 12:00 - Messages

Incidence and relative risk of hearing disorders in professional musicians

Background: Hearing disorders have been associated with occupational exposure to music. Musicians may benefit from non-amplified and low-intensity music, but may also have high risks of music-induced hearing loss.
Aims: To compare the incidence of hearing loss (HL) and its subentities in professional musicians with that in the general population.
Methods: We performed a historical cohort study among insurants between 19 and 66 years who were employed subject to social insurance contributions. The study was conducted with data from three German statutory health insurance providers covering the years 2004–2008 with about 7 million insurants. Incidence rates with 95% CIs of HL and the subentities noise-induced hearing loss (NIHL), conductive HL, sensorineural HL, conductive and sensorineural HL, as well as tinnitus were estimated stratified by age, sex and federal state. A Cox regression analysis was conducted to estimate adjusted HRs and two-sided 95% CIs for HL and its subentities.
Results: More than 3 million insurants were eligible, of whom 2227 were identified as professional musicians (0.07%). During the 4-year observation period, 283 697cases of HL were seen, 238 of them among professional musicians (0.08%), leading to an unadjusted incidence rate ratio of 1.27. The adjusted hazard ratio of musicians was 1.45 (95% CI 1.28 to 1.65) for HL and 3.61 (95% CI 1.81 to 7.20) for NIHL.
Conclusions: Professional musicians have a high risk of contracting hearing disorders. Use of already available prevention measures should reduce the incidence of HL in professional musicians.

Source: Tania Schink, Gunter Kreutz, Veronika Busch, Iris Pigeot, Wolfgang Ahrens. Occup Environ Med. 2014;71:472-476  
http://dx.doi.org/10.1136/oemed-2014-102172

Efficacité des protecteurs auditifs

Les protecteurs individuels contre le bruit (PICB) peuvent être utilisés en complément des moyens de prévention collective contre les nuisances sonores. L'atténuation des bruits apportée par ces équipements est mesurée en laboratoire suivant certaines normes. Des méthodes commerciales existent afin d'évaluer l'atténuation fournie par les PICB sur le lieu de travail. L'INRS a étudié la précision de 4 systèmes commerciaux par rapport aux méthodes de référence normalisées. Les résultats montrent que le niveau de protection peut être estimé, pour une personne donnée et un PICB donné, par certains de ces systèmes commerciaux avec, toutefois, quelques incertitudes.

Source: http://www.rst-sante-travail.fr/rst/pages-article/ArticleRST.html?refINRS=RST.TP 19

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