Transcultural Adaptation and Validation of the Korean Version of the Vocal Tract Discomfort Scale.

The present study translated the Vocal Tract Discomfort Scale (VTDS) into Korean (K-VTDS) and evaluated its reliability and validity. This was a prospective study. The VTDS was first translated into Korean and validated. One hundred and fifty-nine patients with voice disorders were divided into three different diagnostic groups (functional, structural, and neurologic voice disorder) and 131 vocally healthy adults were also included. All participants completed the K-VTDS and the Korean version of the Voice Handicap Index (K-VHI) and Korean versions of the Voice-Related Quality of Life (K-VRQOL). The internal consistency of the K-VTDS was analyzed through Cronbach's α coefficient. The VTDS score differences related to the diagnostic groups were assessed with t test and analysis of variance. We assessed the correlation between the K-VTDS, the K-VHI, and the K-VRQOL using Pearson's correlation analysis. High internal consistency and the test-retest reliability of the K-VTDS were found. The voice disorder group had significantly higher K-VTDS scores for the subscales and total scores than those in the healthy group (P < 0.001). The K-VTDS scores for the subscale of frequency and total scores were highest in the functional voice disorder group. We found a significant difference in frequency and total score of the K-VTDS between the functional voice disorder group and the structural voice disorder group (P < 0.05). We observed a strong positive correlation among the scores for the subscales of frequency and severity, and total scores in the K-VTDS. The K-VTDS showed moderate correlation with the K-VHI and the K-VRQOL. The K-VTDS is a reliable and valid instrument for voice assessment for voice disorders in Korean-speaking patients. Copyright © 2020 The Voice Foundation. Published by Elsevier Inc. All rights reserved.

Citation

Ha Na Lee, Jae Yeon Yoo, Ji Hye Han, Yoon Sik Park, Do Yoon Jung, Jun Hee Park. Transcultural Adaptation and Validation of the Korean Version of the Vocal Tract Discomfort Scale. Journal of voice : official journal of the Voice Foundation. 2022 Jan;36(1):143.e15-143.e23

Mesh Tags

PMID: 32576525

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