Hearing thresholds and hearing disorders prevalence in a population of normal young adults: Should the norms be revisited?

Transcription

1 Hearing thresholds and hearing disorders prevalence in a population of normal young adults: Should the norms be revisited? Wathour J., Ngo F., Chatelier B., Villon E., Gerard J.M. & Deggouj N.

2 I Introduction II Study 1: Hearing Thresholds III Study 2: Tinnitus & hyperacusis prevalence IV 2

3 Introduction Studies 1 and 2 3

4 Introduction Studies 1 and 2 Aims Study 1 : hearing thresholds of young adults comparable ISO 389? Study 2 : preliminary research on the prevalence of hyperacusis and tinnitus 4

5 Introduction Study 1 Study 2 Material & Method 2013 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Data collection years old No hearing complaint French mother tongue -Mail -School -Social network -Posters n = 99 subjects Recruited via: 5

6 Introduction Study 1 Study 2 Material & Method 1) Pure tone audiometry Soundproof cabine Interacoustics AC 40 TDH-39 Down method 2) Speech audiometry CD: 7 lists of 15 monosyllabic words Free Field 3) Statistical analyses Software SPSS version 20 6

7 Introduction Study 1 Study 2 Results Tonal Hearing Thresholds (db HL): mean and median Median 6000 Hz = 10 Group 1 (<=10) Group 2 (> 10) p<0,05 high frequencies 7

8 ( Introduction Study 1 Study 2 Results : median +/- 1 quartile Right Ear Tonal Audiometry Left Ear p<0, Hz p<0, & 8000 HTL Right > HTL Left HTL Left > HTL Right 8

9 Introduction Study 1 Study 2 Results Hearing thresholds (db HL) are > 0 db HL p<

10 Introduction Study 1 Study 2 Litterature 250Hz 500Hz 1000Hz 2000Hz 3000Hz 4000Hz 6000Hz 8000Hz 1998 ISO db HL 1994 n= years Lutman & Davis 8,4 5,5 4,1 4,5 5,5 8 15,4 9, years 2011 n= years 2013 n= years Engdahl & al. 12,5 6,25 3,75 2,5 1,25 3,75 11,25 7,5 Beer & al. 6,05 2,8 0,5 1,25 0 0,95 8,45 3,15 UCL 4,4 5,68 3,74 4,65 4,47 4,95 11,99 6,16 HT 2013 Saint-Luc > ISO

11 Introduction Study 1 Study 2 Results Hearing protection (10%) Better tonal HT (p<0,05) Hearing protections must be promoted. Information Campaigns about noises ototoxicity must be encouraged. 11

12 Introduction Study 1 Study 2 Results Speech audiometry % - 100% = 30 and 40 db SPL - 50% = 10 db SPL - 0% = 0 to 5 db SPL dbspl 12

13 Introduction Study 1 Study 2 Material & Method 296 subjects Home-made questionnaires APHAB (aversiveness) 109 subjects with tinnitus Tinnitus Handicap Inventory Consensus for Tinnitus Research 13

14 Introduction Study 1 Study 2 Results Prevalence of tinnitus & hyperacusis UCL 2013 n=296 subjects 36% tinnitus: 9% tinnitus & hyperacusis 19,5% hyperacusis 14

15 Introduction Study 1 Study 2 Discussion Prevalence of tinnitus and litterature No tinnitus: 63% Transient tinnitus : 34% Permanent tinnitus: 4% n=296 (73 men, 18 to 25 years old) UCL No tinnitus: 20,2% Transient tinnitus: 77,2% Permanent tinnitus: 2,6% n=2665 (20 to 29 years old) Shargorodsky Transient tinnitus: 89,5% Permanent tinnitus: 14,8% n = 145 (44 men, 19 to 26 years) Gilles & al

16 Introduction Study 1 Study 2 Discussion Various questionnaires : UCL (2013) «Have you «never»/» sometimes» / «early always» tinnitus?» Shargorodsky (2010) «In the past 12 months, have you ever had ringing, roaring, or buzzing in your ears? «how often did this happen?» Gilles (2012) The patients used the VAS (Visual Analog Scale) 0=no tinnitus and 10=extremely loud 16

17 Introduction Study 1 Study 2 Adapt the ISO norms to the conditions used in the audition lab More studies on larger population to confirm the HTL changes in young people and tinnitus or hyperacusis prevalence Encourage information campaign about hearing protection systems to limit leisure-induced oto-toxicity 17

18 THANK YOU FOR YOUR ATTENTION!

19 Bibliography Beer, B., Graamans, K., Zielhuis, G.A.& Snik, A.F. (2011) Hearing thresholds of otologically healthy 18 year olds. Journal of hearing science. (1) Cox, R.M. (1996) Questionnaire d évaluation du benefice prothétique (APHAB). Mode d utilisation et applications. Phonak, vol21. Gilles, A., De Ridder, D., Van Hal, G., Wouters, K., Kleine Punte, A. & Van de Heyning, P. (2012). Prevalence of leisure noise-induced tinnitus and the attitude toward noise in university students. Otology and Neurotology 33(6) Lutman, M.E. & Davis, A.C. (1994). The distribution of hearing treshold levels in the general population aged years. International Journal of Audiology (33) Shargorodsky, J., Curhan, G.C. & Farwell, W.R.(2010).Prevalence and characteristics of tinnitus among US adults The American Journal Medecine.123(8): Tixier, C., Wathour, J. & Deggouj, N. (2012). Normalisation de nouvelles listes de mots monosyllabiques pour l audiométrie vocale. Mémoire Master UCL. ISO (1998) Acoustique Zéro de référence pour l étalonnage d équipements audiométriques. Partie 1 : Niveaux de référence équivalents de pression acoustique liminaire pour les écouteurs à sons purs supra-oraux. Stade ICS