title: Hearing-aid outcomes in Chinese adults: clinical application and psychometric properties of the Chinese version of the Satisfaction with Amplification in Daily Life questionnaire.
abstract: OBJECTIVE
  To adapt the Satisfaction with Amplification in Daily Life questionnaire into Chinese (the SADL-CH questionnaire) and investigate hearing-aid satisfaction in a group of adult Hong Kong Chinese fitted with free hearing aids.
  
  
  METHODS
  Cross-sectional survey.
  
  
  METHODS
  One hundred and twenty-five experienced hearing-aid users.
  
  
  METHODS
  The subjects completed a history form seeking demographic data and a questionnaire combining the SADL-CH instrument with questions seeking subjects' subjective ratings of satisfaction with some hearing-aid features and overall satisfaction with their hearing aid.
  
  
  RESULTS
  The SADL-CH questionnaire had a good internal consistency reliability estimate (α = 0.79) comparable to that of the original version. SADL-CH scores were observed to have significant correlations with other satisfaction ratings on some hearing-aid features and the overall satisfaction measure. A high degree of test-retest reliability (intraclass correlation coefficient = 0.79) was observed. Confirmatory factor analysis revealed that the SADL-CH questionnaire had a four-factor structure. Interim norms were derived for the SADL-CH questionnaire. The level of hearing-aid satisfaction in Chinese adults was generally lower than that reported in studies conducted among Western populations.
  
  
  CONCLUSIONS
  The SADL-CH questionnaire is a reliable and valid instrument for measuring hearing-aid satisfaction.
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, Chinese University of Hong Kong, Shatin, Hong Kong. annakam@ent.cuhk.edu.hk
authors.forename: Anna Chi Shan
authors.initials: AC
authors.lastname: Kam
mesh_terms: D000161:Acoustic Stimulation; D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People / Q000523:psychology*; D001301:Audiometry, Pure-Tone; D001307:Auditory Perception; D001309:Auditory Threshold; D002681:China / Q000453:epidemiology; D012048:Correction of Hearing Impairment / Q000523:psychology*; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D003466:Cultural Characteristics; D005163:Factor Analysis, Statistical; D005260:Female; D006310:Hearing Aids; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction / Q000208:ethnology*; D019986:Persons with Hearing Disabilities / Q000523:psychology / Q000534:rehabilitation*; D011237:Predictive Value of Tests; D025341:Principal Component Analysis; D011571:Psychoacoustics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires