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Are EHDI Systems Missing Children With Minimal Hearing Loss?. National EHDI Meeting 03/04/05 W. June Holstrum, Ph.D Danielle Ross, Ph.D. Prevalence. Difference in Prevalence Estimates. Study population Age of subjects Sample size Method of sampling Population based/Clinical sample

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are ehdi systems missing children with minimal hearing loss

Are EHDI Systems Missing Children With Minimal Hearing Loss?

National EHDI Meeting

03/04/05

W. June Holstrum, Ph.D

Danielle Ross, Ph.D.

difference in prevalence estimates
Difference in Prevalence Estimates
  • Study population
    • Age of subjects
    • Sample size
  • Method of sampling
    • Population based/Clinical sample
    • Based on records/interviews/audiological tests
  • Definitions of hearing loss
    • Laterality (best/worse ear)
    • Frequency
    • dB Threshold
possible explanations for change is prevalence from birth to school age
Possible Explanations for Change is Prevalence (From birth to School Age)
  • Progressive or late onset
  • Infections/illnesses, e.g. OME
  • Trauma
  • Noise
  • EHDI system misses
dshpshwa data
DSHPSHWA Data
  • Y2003 DSHPSHWA Survey
  • Data from 27 states
  • Number born = 1,503,627
  • Number Screened = 1,457,639 (96%)
  • Number Identified = 1,646 (1.1/1000)
  • Number categorized = 1,252
    • 826 Bilateral (66%)
    • 426 Unilateral (34%)
  • % Lost to System = 42% (0 – 90%)
hearing loss by category unilateral 34 bilateral 66
Hearing Loss by CategoryUnilateral = 34% Bilateral = 66%

Data from Y2003 DSHPSHWA Survey (27 States Reporting)

possible explanations for missing infants with minimal hl
Possible Explanationsfor Missing Infants with Minimal HL
  • Technology
  • Screeners
  • Lack of interest in minimal hearing loss
  • Lost to the system
  • Lack of follow-up of high-risk infants
  • Emphasis on lowering referral rates
conclusions too many misses need more home runs
Conclusions(Too many misses - Need more home runs)
  • Babies with mild and unilateral losses are being missed.
  • Improve EHDI Systems to
    • Identity desired level of loss
    • Reduce lost to the system
  • Screening needs to be on-going
  • Need prevalence studies on HL in preschool years.