title: Wideband Tympanometry Normative Data for Different Age Groups in Turkish Population.
abstract: OBJECTIVE
  Studies on the use of wideband tympanometry (WBT) for the evaluation of middle ear pathologies have been increasing gradually in recent years. However, studies regarding normative data of WBT are not sufficient. The aim of this study was to determine normative values of WBT for different age groups in Turkish population.
  
  
  METHODS
  One hundred fifty volunteers from five age-related groups were included in this study. Values of resonance frequency (RF), absorbance percentage according to frequency, maximum absorbance ratio, and maximum absorbance frequency were obtained using WBT. Measurements were recorded at a pressure of 0 decapascal (daPa) using a sound stimulus given at 90±3 decibel sound pressure level (dB SPL).
  
  
  RESULTS
  The RF was detected to be significantly lower only in the group of subjects in the age range of 0-1 month. The absorbance value at 250 Hz was detected to be significantly higher in the age groups of 0-1 month and 1 month-2 years than in the other groups.
  
  
  CONCLUSIONS
  We believe that the findings obtained in this study would be helpful in determining normative data regarding WBT; by the determination of this normative data, the clinical use of WBT would become widespread.
authors.affiliation: Department of Otorhinolaryngology, Recep Tayyip Erdoğan University School of Medicine, Rize, Turkey. akozgur53@gmail.com.
authors.forename: Abdulkadir
authors.initials: A
authors.lastname: Özgür
authors.forename: Banu
authors.initials: B
authors.lastname: Müjdeci
authors.forename: Suat
authors.initials: S
authors.lastname: Terzi
authors.forename: Zerrin
authors.initials: Z
authors.lastname: Özergin Coşkun
authors.forename: Enes
authors.initials: E
authors.lastname: Yiğit
authors.forename: Engin
authors.initials: E
authors.lastname: Dursun
mesh_terms: D000158:Acoustic Impedance Tests / Q000379:methods / Q000592:standards* / Q000706:statistics & numerical data*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D014421:Turkey; D055815:Young Adult