title: Audiometry-Based Screening Procedure for Cochlear Implant Candidacy.
abstract: OBJECTIVE
  This study defines a screening procedure for cochlear implant (CI) candidacy in hearing aid users by using simple audiometric measures.
  
  
  METHODS
  Within this retrospective study, hearing aid performance and audiometric measures in 185 subjects (318 ears) were analyzed. By means of a linear Naive Bayes classifier, the pure-tone average and the maximum monosyllabic score (PB(max)) were used to predict the aided monosyllabic word score and CI candidacy.
  
  
  RESULTS
  The two parameters PB(max) and four-frequency hearing threshold average can be used to predict speech perception with hearing aids with reasonable accuracy for screening purposes. The classification has a sensitivity of 87% and a specificity of 91%. The classification can be represented by a simple linear formula.
  
  
  CONCLUSIONS
  CI candidacy can be predicted based on commonly used audiometric measures.Cochlear implant candidacy may be considered if the difference between the average pure-tone threshold (in decibels) and PBmax (in percent) exceeds 8.
authors.affiliation: *Department of Audiology, ENT-Clinic, University of Erlangen-Nürnberg, Erlangen; and †Cochlear Deutschland GmbH & Co KG, Karl-Wiechert-Allee, Hannover, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Hoppe
authors.forename: Anne
authors.initials: A
authors.lastname: Hast
authors.forename: Thomas
authors.initials: T
authors.lastname: Hocke
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000465:Algorithms; D001301:Audiometry, Pure-Tone / Q000379:methods*; D001309:Auditory Threshold; D019929:Cochlear Implantation / Q000379:methods*; D003054:Cochlear Implants; D005260:Female; D006310:Hearing Aids; D006801:Humans; D008297:Male; D008875:Middle Aged; D018579:Patient Selection; D012189:Retrospective Studies; D013067:Speech Perception; D055815:Young Adult