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Binge Listening Is exposure to leisure noise causing hearing loss in young Australians?

Binge Listening Is exposure to leisure noise causing hearing loss in young Australians?. Harvey Dillon, Warwick Williams, Megan Gilliver, Elizabeth Beach. Noise. Work-related hearing loss. Work-related hearing loss. Work-related hearing loss. Leisure-related hearing loss.

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Binge Listening Is exposure to leisure noise causing hearing loss in young Australians?

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  1. Binge ListeningIs exposure to leisure noise causing hearing loss in young Australians? Harvey Dillon, Warwick Williams, Megan Gilliver, Elizabeth Beach

  2. Noise Work-related hearing loss Work-related hearing loss Work-related hearing loss Leisure-related hearing loss Leisure-related hearing loss Leisure-related hearing loss Leisure-related hearing loss Work-related hearing loss Noise-induced hearing loss

  3. Overview • Australian Hearing on-line survey of 1000 people aged 18 to 35 • Dosimeter measurements at various leisure activities • Measurements of actual noise exposure from MP3 players

  4. Measuring noise levels in leisure activities

  5. A crash course in NOISE

  6. Workplace Noise Limits

  7. Noise levels in leisure activities Average noise level (dB)

  8. Leisure noise exposure on a typical night out Noise level: 100 dB for 4 hours = 16 ADEs 114 dB Enter Club B 106 dB Enter Club A89 dB 85 dB Enter Club C 104 dB 64 dB 9:34pm 1:42am

  9. Binge Listening

  10. Risky activities • Risk • Loudness • Exposure time (how long, how often) • How many people • Mixing many high risk activities

  11. Life-time noise exposure • Activities change over life • So noise/sound exposure changes • Noise injury due to noise exposure is cumulative over the life-time • Using a ‘noise exposure profile’ can highlight the most significant noise sources for typical individuals • Prevention activities can be better targeted

  12. Sound exposure profile over a life-time Sound exposures add up! 42-year old with accumulated noise-exposure of a 60 year-old Williams, 2008

  13. Level x time x regularity = exposure

  14. Annual noise dose

  15. Attendance at night clubs / dance parties

  16. 93 dB Sporting event 83 dB Gym with music 84 dB Concert 92 dB Pub/club 97 dB Night-club / dance venue

  17. Club sound levels during the evening

  18. MP3 player use

  19. Personal stereo players (PSP) • Long term study • Average level (LAeq) 84 dB • Average use per day ~2:20 h:m • Average exposure (LAeq,8h) 78 dB • Users potentially at risk 23% • Users seriously at risk ~4%

  20. MP3 exposure levels 2003 2006 2009

  21. MP3 daily noise doses

  22. 13% get more than one year’s max acceptable noise dose each year Total annual leisure exposure (5 activities) 747

  23. 24% get more than one year’s max acceptable noise dose each year Total annual leisure exposure (MP3 use)

  24. + 43% get more than one year’s max acceptable noise dose each year Total annual leisure exposure (MP3 use)

  25. Does age and gender affect exposure?

  26. Is exposure affecting self-rated hearing difficulty?

  27. Is MP3 player use affecting hearing difficulty?

  28. Do noise-exposed people perceive the risk to their hearing from leisure noise?

  29. Do noise-exposed people perceive the risk to their hearing from MP3 exposure?

  30. Do noise-exposed people perceive the risk to their hearing from leisure sound exposure?

  31. Is it permanent?

  32. There is reasonable awareness about noise and hearing loss

  33. Stages of Change 14% 48% 39%

  34. Exposure varies between behaviour groups

  35. Conclusions - Exposure • Most people enjoy leisure activities safely • Clubbing and MP3 use both impart dangerous noise doses to a small proportion of young people • Those with the greatest noise exposure report the greatest number of hearing loss symptoms • Exposure diminishes with age over the range 18 to 35 years • Life-time risk depends on years of exposure, and work-related exposure • MP3 exposure (per person) may be dropping over time

  36. Conclusions - Awareness • There is widespread awareness that excessive sound causes hearing loss, but: • Over 20% of those with high leisure noise exposure think they personally have little or no risk, even if they know there is a general link • More than 1/3 of people don’t realise that sound-induced hearing loss is permanent.

  37. Acknowledgments • Hearing loss prevention program, Office of Hearing Services, Department of Health and Ageing • Australian Hearing, Marketing and Communication team • The Hearing CRC

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