title: Mobile and landline telephone performance outcomes among telephone-using cochlear implant recipients.
abstract: OBJECTIVE
  To objectively study mobile and standard landline telephone speech perception performance using cochlear implant recipients.
  
  
  METHODS
  Nonrandomized trial.
  
  
  METHODS
  Tertiary referral center.
  
  
  METHODS
  Twenty-five subjects enrolled in this study from a pool of 50 cochlear implant recipients who had participated in an earlier questionnaire study from which demographic data were gathered. Preoperative speech perception scores were collated from preoperative audiological data. Postoperative speech perception scores were calculated with subjects listening to the Australian Version of the Bamford-Kowal-Bench Sentence Test read aloud in a soundproof booth via live voice, played back on a speaker, on a standard landline and mobile phone. Telephone speech perception scores were analyzed and banded into 3 performance categories: very good (90%-100%), good (80%-89%), and fair (<80%).
  
  
  RESULTS
  The mean speech perception scores were 88.6% (SD, 14.3%) for postoperative recorded speech and 92.3% (SD, 10.7%) for live voice listening, which were significantly better than the mean score of 37.2% (SD, 29.1%) listening to recorded voice preoperatively. The mean speech perception score was 84.3% (SD, 20.7%) using a mobile telephone and 57% (SD, 29.4%) using the standard landline. Further analysis showed better performance with mobile phones over standard landlines. Seventy-six percent of subjects attained at least good telephone speech performance (score >80%). Older patients had poorer telephone speech perception than younger patients did.
  
  
  CONCLUSIONS
  Many cochlear implant recipients achieve good objective telephone speech perception performance, indicating that they should be effective telephone users, especially when using mobile telephones and among younger implant recipients.
authors.affiliation: Sir Charles Gairdner Hospital, Perth, Australia.
authors.forename: Barrie Yau Boon
authors.initials: BY
authors.lastname: Tan
authors.forename: Michael Brian
authors.initials: MB
authors.lastname: Gluth
authors.forename: Elle Louise
authors.initials: EL
authors.lastname: Statham
authors.forename: Robert Henry
authors.initials: RH
authors.lastname: Eikelboom
authors.forename: Marcus David
authors.initials: MD
authors.lastname: Atlas
mesh_terms: D000368:Aged; D003054:Cochlear Implants; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013067:Speech Perception; D013689:Telephone