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Longitudinal changes in hearing threshold levels for noise-exposed military personnel

  • Audrey ColléeEmail author
  • Jean-Baptiste Watelet
  • Hanne Vanmaele
  • Jozef Van Thielen
  • Peter Clarys
Original Article
  • 72 Downloads

Abstract

Purpose

Military personnel are exposed to variable and sometimes very high noise in their professional environment. The aim of this study is to evaluate through a longitudinal study if our hearing conservation program has to be adapted to consider specific interventions for subgroups of our military population still subject to a higher risk of hearing loss.

Methods

We conducted a retrospective longitudinal study in 2015–2016 to describe the evolution of hearing threshold levels of military personnel as measured during periodic audiometric screening over a period of 6 years (2009–2014) after the implementation of our hearing conservation program. A linear mixed model explored the relationship of pure-tone average (PTA) on 3, 4 and 6 KHz with probability of noise exposure, gender, age at baseline, time since baseline, hearing loss at baseline and ear.

Results

For 18,672 military individuals, our results show a small but statistically significant increase of 0.08 dB per year in PTA on 3, 4 and 6 KHz over the 6-year period that is consistently decelerating as a function of time. An additional annual increase of hearing thresholds due to higher age and moderate and high probability of exposure to noise was also found.

Conclusions

No major adaptation of our hearing conservation program is required but efforts should be strengthened to better evaluate and counsel older individuals and subjects exposed to noise regarding avoidance of noise and correct use of personal hearing protection.

Keywords

Noise-induced hearing loss Longitudinal studies Military Epidemiology Occupational noise exposure 

Notes

Compliance with ethical standards

The authors whose names are listed above certify that they have NO affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript. The findings and conclusions presented in this paper are those of the authors and do not necessarily reflect the official policy of the Belgian Defense.

Ethical approval

The study was performed in accordance with the 1964 Declaration of Helsinki and its later amendments. The study protocol was approved by the Ethics Committee of the Ghent University Hospital.

References

  1. ANSI (1996) American National Standard: determination of occupational noise exposure and estimation of noise-induced hearing impairment. American National Standards Institute, Inc., New York (ANSI S3.44-1996) Google Scholar
  2. Article V.2-4 of the Belgian code of well-being at work. http://www.ejustice.just.fgov.be/cgi_loi/change_lg.pl?language=fr&la=F&table_name=loi&cn=2017042827. Accessed 30 Oct 2018
  3. Carhart R, Jerger JF (1959) Preferred method for clinical determination of pure-tone thresholds. J Speech Hear Dis 24:330–345.  https://doi.org/10.1044/jshd.2404.330 CrossRefGoogle Scholar
  4. Clark WW, Bohl CD (2005) Hearing levels of firefighters: risk of occupational noise-induced hearing loss assessed by cross-sectional and longitudinal data. Ear Hear 26(3):327–340. http://journals.lww.com/ear-hearing/pages/articleviewer.aspx?year=2005&issue=06000&article=00008&type=abstract
  5. Clark W, Bohne B (1999) Effects of noise on hearing. JAMA 281:1658–1659. http://jamanetwork.com/journals/jama/fullarticle/1718638
  6. Collée A, Legrand C, Govaerts B et al (2011) Occupational exposure to noise and the prevalence of hearing loss in a Belgian military population: a cross-sectional study. Noise Health 13(50):64–70.  https://doi.org/10.4103/1463-1741.73997 CrossRefGoogle Scholar
  7. Concha-Barrientos M, Campbell-Lendrum D, Steenland K (2004) Occupational noise: assessing the burden of disease from work-related hearing impairment at national and local levels. Report Number 9. World Health Organization, Geneva. http://www.who.int/quantifying_ehimpacts/publications/en/ebd9.pdf. Accessed 16 Nov 2016
  8. European Commission (2003) Directive 2003/10/EC of the European parliament and of the council of 6 February 2003 on the minimum health and safety requirements regarding exposure of workers to the risks arising from physical agents (noise). Official Journal of the European Union, 15 Feb 2003. http://eur-lex.europa.eu/eli/dir/2003/10/2008-12-11. Accessed 10 Aug 2016
  9. Grantham M (2012) Noise-induced hearing loss and tinnitus: challenges for the military. In Leprell CG et al (eds) Noise induced hearing loss: Scientific advances. Springer handbook of auditory research, vol 40, Springer, Berlin, pp 27–38CrossRefGoogle Scholar
  10. Helfer TM, Canham-Chervak M, Canada S, Mitchener TA (2010) Epidemiology of hearing impairment and noise-induced hearing injury among US military personnel, 2003–2005. Am J Prev Med 38(1 Suppl):S71–S77.  https://doi.org/10.1016/j.amepre.2009.10.025 CrossRefGoogle Scholar
  11. Hong O, Kerr MJ, Poling GL, Dhar S (2013) Understanding and preventing noise-induced hearing loss. Dis Mon 59(4):110–118.  https://doi.org/10.1016/j.disamonth.2013.01.002 CrossRefGoogle Scholar
  12. Institute of Medicine (U.S.) (2006) Committee on noise-induced hearing loss and tinnitus associated with military service from World War II to the present. In: Humes LE, Joellenbeck LM, Durch JS (eds) Noise and military service: implications for hearing loss and tinnitus. National Academies Press, Washington, DCGoogle Scholar
  13. ISO (2013) Acoustics—estimation of noise-induced hearing loss (ISO 1999:2013). https://www.iso.org/standard/45103.html
  14. ISO 8253.1 (2010) Acoustics—audiometric test methods—part 1: pure-tone air and bone conduction audiometry. International Organization for Standardization, GenevaGoogle Scholar
  15. ISO-389.1 (1998) Acoustics—reference zero for the calibration of audiometric equipment—part 1: reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones. International Organization for Standardization, GenevaGoogle Scholar
  16. Jacqmin-Gadda H, Sibillot S, Proust C, Molina J-M, Thiebaut R (2007) Robustness of the linear mixed model to misspecified error distribution. Comput Stat Data Anal 51(10):5142–5154.  https://doi.org/10.1515/sagmb-2013-0066 CrossRefGoogle Scholar
  17. Kirchner B, Evenson E, Dobie R et al (2012) ACOEM guidance statement. Occupational noise-induced hearing loss. ACOEM task force on occupational hearing loss. J Occup Environ Med 54(1):106–108. https://www.acoem.org/uploadedfiles/public_affairs/policies_and_position_statements/occupational%20noise-induced%20hearing%20loss.pdf
  18. Konings A, Van Laer L, Wiktorek-Smagur A et al (2009) Candidate gene association study for noise-induced hearing loss in two independent noise-exposed populations. Ann Hum Genet 73(2):215–224.  https://doi.org/10.1111/j.1469-1809.2008.00499.x CrossRefGoogle Scholar
  19. Konings A, Van Laer L, Pawelczyk M et al (2007) Association between variations in CAT and noise-induced hearing loss in two independent noise-exposed populations. Hum Mol Genet 16(15):1872–1883.  https://doi.org/10.1093/hmg/ddm135 CrossRefGoogle Scholar
  20. Leensen MC, Dreschler WA (2015) Longitudinal changes in hearing threshold levels of noise-exposed construction workers. Int Arch Occup Environ Health 88(1):45–60.  https://doi.org/10.1007/s00420-014-0932-y CrossRefGoogle Scholar
  21. Lie A, Skogstad M, Johannessen HA, Tynes T et al (2016) Occupational noise exposure and hearing: a systematic review. Int Arch Occup Environ Health 89(3):351–372.  https://doi.org/10.1007/s00420-015-1083-5 CrossRefGoogle Scholar
  22. Moore BC (2016) A review of the perceptual effects of hearing loss for frequencies above 3 kHz. Int J Audiol 14:1–8.  https://doi.org/10.1080/14992027.2016.1204565 Google Scholar
  23. Neitzel R, Seixas N (2005) The effectiveness of hearing protection among construction workers. J Occup Environ Hyg 2(4):227–238.  https://doi.org/10.1080/15459620590932154 CrossRefGoogle Scholar
  24. Margolis RH, Wilson RH, Popelka GR, Eikelboom RH, Swanepoel DW, Saly GL (2015) Distribution characteristics of normal pure-tone thresholds. Int J Audiol 54(11):796–805CrossRefGoogle Scholar
  25. Ryan A, Kujawa S, Hammill T, Le Prell C, Kil J (2016) Temporary and permanent noise-induced threshold shifts: a review of basic and clinical observations. Otol Neurotol.  https://doi.org/10.1097/MAO.0000000000001071 Google Scholar
  26. Seidman M, Standring R (2010) Noise and quality of life. Int J Environ Res Public Health. 7(10):3730–38CrossRefGoogle Scholar
  27. Seixas NS, Goldman B, Sheppard L, Neitzel R, Norton S, Kujawa SG (2005) Prospective noise induced changes to hearing among construction industry apprentices. Occup Environ Med 62(5):309–317.  https://doi.org/10.1136/oem.2004.018143 CrossRefGoogle Scholar
  28. United States Department of Labour-Occupational Safety and Health standards-occupational noise exposure (29 CFR 1910.95). https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9735
  29. US Army Aeromedical Reference and waiver guide (2016) http://www.med.navy.mil/sites/nmotc/nami/arwg/Documents/WaiverGuide/06_ENT.pdf. Accessed 28 Nov 2016
  30. Van Laer L, Carlsson PI, Ottschytsch N et al (2006) The contribution of genes involved in potassium-recycling in the inner ear to noise-induced hearing loss. Hum Mutat 27(8):786–795.  https://doi.org/10.1002/humu.20360 CrossRefGoogle Scholar
  31. Zhang D, Davidian M (2001) Linear mixed models with flexible distributions of random effects for longitudinal data. Biometrics 57:795–802.  https://doi.org/10.1111/j.0006-341X.2001.00795.x/abstract CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Unit of Epidemiology and Biostatistics, Staff Department Well BeingBelgian DefenceBrusselsBelgium
  2. 2.Department of Human Biometry and Biomechanics, Faculty of Physical Education and PhysiotherapyVrije Universiteit BrusselBrusselsBelgium
  3. 3.Department of Otorhinolaryngology, Ghent University HospitalUniversiteit GentGhentBelgium
  4. 4.Occupational Medicine Service, Staff Department Well BeingBelgian DefenceBrusselsBelgium

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