Objectives: This study developed the Mandarin Chinese version of the Aging Voice Index (AVI), with preliminary validation of the scale for potential clinical applications.

Study Design: Scale development.

Methods: The experimental procedure involved: (1) cross-cultural adaptation of the original AVI into the Mandarin Chinese version (CAVI); (2) evaluation by expert panel; (3) back translation; (4) pilot testing; (5) development of the final CAVI; (6) scale validation with 68 older adults of 60-89 years old (29 females and 39 males), 34 with voice disorders and 34 age-matched with normal voice. Internal consistency reliability, test-retest reliability, content validity, criterion-related validity, and discriminatory ability (diagnostic accuracy) of the CAVI were evaluated.

Results: There were high internal consistency (Cronbach's alpha = 0.9733), high test-retest reliability (intraclass correlation coefficient = 0.9578,  < 0.01), high content validity (content validity index = 0.9710), high criterion-related validity (Pearson's  = 0.9439,  < 0.01 between CAVI and Voice Handicap Index-10;  = 0.8070,  < 0.01 between CAVI and voice-related quality of life [V-RQOL]), and significant difference in CAVI scores between the two groups with huge effect size ((34.69) = -11.59, Cohen's  = 2.81,  < 0.001). Receiver operating characteristic analysis revealed a high diagnostic accuracy of the CAVI, with an area under the curve of 0.9974 ( < 0.001) and a cut-off score of 12.0 with 100% sensitivity and 97.1% specificity.

Conclusion: Our findings suggested that the CAVI could be a reliable and valid standardized self-assessment questionnaire tool for clinical evaluation of the impact of voice problems specifically for Mandarin-speaking older adults. Further studies should explore a full-scale validation of the CAVI for being a standard clinical tool, including for older adults in Mainland China.

Level Of Evidence: 3b (case-control study).

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10446271PMC
http://dx.doi.org/10.1002/lio2.1117DOI Listing

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