Okui Ayako, Nimura Yoshitsugu, Komazawa Daigo, Kanazawa Takeharu, Konomi Ujimoto, Hirosaki Mayu, Okano Mitsuhiro, Nishida Mayuko, Watanabe Yusuke
Tokyo Voice Center, International University of Health and Welfare, Tokyo, Japan; Department of Otorhinolaryngology, International University of Health and Welfare Graduate School of Medicine, Tokyo, Japan.
Nimura ENT Voice Clinic, Osaka, Japan; Kobe College School of Music, Hyogo, Japan.
J Voice. 2024 Mar;38(2):544.e15-544.e21. doi: 10.1016/j.jvoice.2021.08.023. Epub 2021 Oct 9.
The aim of the present study was to translate the Singing Voice Handicap Index (SVHI) into Japanese and validate the Japanese version of the SVHI.
The SVHI was translated into Japanese from the validated original version, and the questionnaire was administered to 102 singers with voice problems and 88 healthy singers. Internal consistency and test-retest methods were implemented to evaluate the reliability of this index. The internal consistency method assessed validity via Cronbach's α, and test-retest reliability was analyzed by the intraclass correlation coefficient (ICC) and limits of agreement (LoA) according to the Bland Altman method. Construct validity was verified by confirming correlations between SVHI scores and visual analog scale (VAS) scores for disability in singing using Spearman correlation. Discriminant validity was evaluated by comparing SVHI scores between singers with voice problems and healthy singers using t tests. Using the Tukey's honestly significant difference (HSD) test, we also compared the Voice Handicap Index (VHI) and SVHI scores among three groups: healthy singers, singers with voice problems solely during singing, and singers with voice problems during both speaking and singing.
The Japanese version of the SVHI showed excellent internal consistency (Cronbach's α = 0.981) and test-retest reliability (ICC: 0.93). The 95 percent LoA was calculated to be between -20.8 and 33.9. Construct validity was verified through correlated SVHI and VAS scores (r = 0.736, P < 0.001). Discriminant validity was verified as the SVHI scores of singers with voice problems were higher than those of healthy singers (77.8±37.5 vs. 30.0±26.5, P < 0.001). There were no statistically significant differences in VHI scores between singers with voice problems solely during singing and healthy singers; however, the SVHI scores of singers with voice problems solely during singing were significantly higher than those of healthy singers (63.4±36.8 vs. 30.0±26.5, P < 0.001).
We confirmed that the Japanese version of the SVHI is a valid and reliable self-rated questionnaire for measuring the patient-perceived impact of singing voice problems among Japanese singers.
本研究旨在将歌唱嗓音障碍指数（SVHI）翻译成日语，并验证其日语版本。
将经过验证的SVHI原始版本翻译成日语，并对102名有嗓音问题的歌手和88名健康歌手进行问卷调查。采用内部一致性和重测法评估该指数的可靠性。内部一致性方法通过Cronbach's α评估效度，重测信度根据Bland Altman方法通过组内相关系数（ICC）和一致性界限（LoA）进行分析。通过使用Spearman相关性确认SVHI得分与歌唱残疾视觉模拟量表（VAS）得分之间的相关性来验证结构效度。通过t检验比较有嗓音问题的歌手和健康歌手的SVHI得分来评估区分效度。使用Tukey's 真实显著差异（HSD）检验，我们还比较了三组歌手的嗓音障碍指数（VHI）和SVHI得分：健康歌手、仅在唱歌时有嗓音问题的歌手以及在说话和唱歌时都有嗓音问题的歌手。
SVHI日语版本显示出优异的内部一致性（Cronbach's α = 0.981）和重测信度（ICC：0.93）。计算得出95%的LoA在-20.8至33.9之间。通过相关的SVHI和VAS得分（r = 0.736，P < 0.001）验证了结构效度。由于有嗓音问题的歌手的SVHI得分高于健康歌手（77.8±37.5对30.0±26.5，P < 0.001），因此验证了区分效度。仅在唱歌时有嗓音问题的歌手与健康歌手的VHI得分没有统计学上的显著差异；然而，仅在唱歌时有嗓音问题的歌手的SVHI得分显著高于健康歌手（63.4±36.8对30.0±26.5，P < 0.001）。
我们证实，SVHI日语版本是一种有效且可靠的自评问卷，用于衡量日本歌手中患者感知的歌唱嗓音问题的影响。
