Department of Rehabilitation Sciences, East China Normal University, Shanghai, China.
Department of Otolaryngology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
Logoped Phoniatr Vocol. 2024 Dec;49(4):179-187. doi: 10.1080/14015439.2023.2271569. Epub 2023 Oct 20.
This study aimed to translate the Vocal Fatigue Index (VFI) into Simplified Chinese and test its reliability and validity in mainland China.
The original English version of the VFI was translated and adapted to a Simplified Chinese version (VFI -SC). Fifty-four participants with voice disorders and 21 healthy controls completed the VFI-SC. Sixteen participants with voice disorders completed it again two weeks later. Reliability, validity, and receiver operating characteristic (ROC) of the VFI-SC were analyzed.
The Cronbach's alpha values for the VFI factor scores were found to be 0.930 for tiredness and avoidance of voice use (factor 1), 0.878 for physical discomfort with voice use (factor 2), and 0.915 for improvement of symptoms with voice rest (factor 3). The test-retest reliability was 0.967 for all three factors. There was a significant difference between the total scores of the patient group and the control group ( < 0.01). Factor 1 and factor 2 were positively correlated with the Voice Handicap Index (VHI-30). The ROC curves showed acceptable intrinsic accuracies for factor 1 (AUC = 0.883), factor 2 (AUC = 0.901), and factor 3 (AUC = 0.800), with cutoff scores of 22, 7, and 9, respectively.
This study provides preliminary evidence that the VFI-SC has good reliability and validity. It can be used to screen for clinical symptoms of voice fatigue in mainland China.
本研究旨在将嗓音疲劳指数（VFI）翻译为简体中文，并在中国大陆地区检验其信度和效度。
将原始的 VFI 英文版本翻译并改编为简体中文版本（VFI-SC）。54 名嗓音障碍患者和 21 名健康对照者完成了 VFI-SC 的评估。其中 16 名嗓音障碍患者在两周后再次完成了评估。分析了 VFI-SC 的信度、效度和受试者工作特征（ROC）曲线。
VFI 因子得分的 Cronbach's α 值分别为疲劳和避免发声（因子 1）的 0.930、使用嗓音时的身体不适（因子 2）的 0.878 和嗓音休息时症状改善（因子 3）的 0.915。所有三个因子的重测信度为 0.967。患者组和对照组的总分之间存在显著差异（ < 0.01）。因子 1 和因子 2 与嗓音障碍指数（VHI-30）呈正相关。ROC 曲线显示因子 1（AUC = 0.883）、因子 2（AUC = 0.901）和因子 3（AUC = 0.800）的内在准确性可接受，截断值分别为 22、7 和 9。
本研究初步表明 VFI-SC 具有良好的信度和效度。它可以用于筛查中国大陆地区嗓音疲劳的临床症状。
