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Audiometric Configurations in Children

Audiometric Configurations in Children. Andrea Pittman, Ph.D. Arizona State University. Method. Groups 6-year-old children 60-year-old adults Audiogram Selection Criteria Right ear thresholds only Thresholds for each octave test frequency (250-8000 Hz)

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Audiometric Configurations in Children

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  1. Audiometric Configurations in Children Andrea Pittman, Ph.D. Arizona State University

  2. Method • Groups • 6-year-old children • 60-year-old adults • Audiogram Selection Criteria • Right ear thresholds only • Thresholds for each octave test frequency (250-8000 Hz) • At least one threshold > 30 dB HL • Confirmed sensorinueral hearing loss by bone conduction audiometry • Air-bone gaps < 10 dB

  3. Method • Core Set of Audiograms • 227 children • 248 adults • Analyses • Configuration • Asymmetry • Progression

  4. *Transducer Effects Frequency (Hz) Hearing Level (dB)

  5. NBS 9A Coupler TDH Series Earphone 6cm3 Mic *Transducer Effects

  6. Frequency (Hz) Mic Hearing Level (dB) 2cm3 6cm3 Mic ER 3A Mic *Transducer Effects

  7. All Audiograms Adults (n=248) Children (n=227)

  8. All Audiograms Adults (n=248) Children (n=227)

  9. All Audiograms Adults (n=248) Children (n=227)

  10. All Audiograms Adults (n=248) Children (n=227)

  11. All Audiograms Adults (n=248) Children (n=227)

  12. Audiometric Classification Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  13. Adults Children Results (Mean) Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  14. Adults Children Results (Mean) Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  15. Adults Children Results (Mean) Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  16. Adults Children Results (Mean) Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  17. Results (SD) Adults Children +1SD Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  18. Results (SD) Adults Children Frequency (Hz) Sloping Rising Hearing Level (dB) U-Shaped Tent-Shaped Other

  19. Results (SD) Adults Children Frequency (Hz) Sloping Rising Flat Hearing Level (dB) U-Shaped Tent-Shaped Other

  20. Distribution of Configurations Percent of Audiograms Category

  21. Adults Children Sloping U-Shaped *Sloping Losses Frequency (Hz) Rising Flat Hearing Level (dB) Tent-Shaped Other

  22. Adults Children *Sloping Losses Frequency (Hz) Hearing Level (dB)

  23. Adults Children *Sloping Losses Frequency (Hz) Hearing Level (dB)

  24. *Sloping Losses Adults Children

  25. Asymmetry

  26. Asymmetry 4000 Hz Adults Children Left-ear Threshold Right-ear Threshold

  27. *Binaural Fitting Strategies Frequency (Hz) Hearing Level (dB)

  28. Progression Frequency (Hz) Hearing Level (dB) Baseline Audiogram (6-yr-old) Subsequent Audiogram +5 +5 +10 +10 +20 +15

  29. 60 40 20 0 -20 -40 -60 6 7 8 9 10 11 12 13 14 15 Progression Change in Threshold (dB) Age at Subsequent Audiogram (years)

  30. Progression Change in Threshold (dB) Number of Thresholds

  31. Summary • Configuration • Children had a wider variety of audiometric configurations • Asymmetry • More children had asymmetric losses and those asymmetries were more severe • Progression/Fluctuation • Thresholds increased and decreased on subsequent audiograms

  32. Frequency (Hz) Hearing Level (dB) The End

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