title: Tympanometric norms for Chinese young adults.
abstract: OBJECTIVE
  To obtain tympanometric norms in Southern Chinese young adult population and compare the results with data obtained for a Caucasian population.
  
  
  METHODS
  Ear canal volume (Vea), tympanometric compensated static acoustic admittance (Peak Ytm), tympanometric width (TW) and tympanometric peak pressure (TPP) were obtained on 100 Southern Chinese young adults. Results were compared with findings from Roup et al. (1998). Inter-tester reliability was established.
  
  
  RESULTS
  Compared with the results obtained by Roup et al. (1998) on non-Hispanic Caucasian population, Southern Chinese subjects were found to have lower Peak Ytm, wider TW and more positive TPP values. No gender difference was noted for Peak Ytm, TW and TPP values in Chinese subjects. Inter-tester reliability was good.
  
  
  CONCLUSIONS
  The tympanometric norms obtained in this study are recommended when evaluating middle ear function among Southern Chinese young adults.
authors.affiliation: Department of Speech and Hearing Services, The University of Hong Kong, Prince Philip Dental Hospital.
authors.forename: Imelda K K
authors.initials: IK
authors.lastname: Wan
authors.forename: Lena L N
authors.initials: LL
authors.lastname: Wong
mesh_terms: D000158:Acoustic Impedance Tests / Q000295:instrumentation* / Q000706:statistics & numerical data; D000328:Adult; D004867:Equipment Design; D005006:Ethnicity; D005260:Female; D006801:Humans; D008297:Male; D012016:Reference Values; D017678:Sex Distribution; D014432:Tympanic Membrane / Q000502:physiology*