Sotirović, Jelena (24400213600)Jelena (24400213600)SotirovićGrgurević, Anita (12780453700)Anita (12780453700)GrgurevićMumović, Gordana (6504066728)Gordana (6504066728)MumovićGrgurević, Uglješa (56300850500)Uglješa (56300850500)GrgurevićPavićević, Ljubomir (12773720800)Ljubomir (12773720800)PavićevićPerić, Aleksandar (36763628500)Aleksandar (36763628500)PerićErdoglija, Milan (55200313900)Milan (55200313900)ErdoglijaMilojević, Milanko (26533186900)Milanko (26533186900)Milojević2025-07-022025-07-022016https://doi.org/10.1016/j.jvoice.2015.09.002https://www.scopus.com/inward/record.uri?eid=2-s2.0-85002263326&doi=10.1016%2fj.jvoice.2015.09.002&partnerID=40&md5=c8b1e033dd9dd2feb241c038df80e49bhttps://remedy.med.bg.ac.rs/handle/123456789/13336Objectives To evaluate the internal consistency, test-retest reliability, and clinical validity of the Serbian version of the self-administered Voice Handicap Index (VHI)-30. Study Design Cross-sectional study. Methods The English version of VHI-30 was translated into Serbian and then back-translated into English. The Serbian VHI-30 was administered to 91 patients divided into four groups according to voice pathology: structural, inflammatory, neurologic, and functional groups. The control group included 90 subjects with no voice problems. The internal consistency (Cronbach's alpha coefficient α), test-retest reliability (interclass correlation coefficient) of VHI-30, comparison of patient's and control's VHI-30 scores (Mann-Whitney U test; Kruskal-Wallis test), and correlation with overall severity of dysphonia (Spearman correlation coefficient, ρ) were calculated. Results In the patient group, we observed excellent internal consistency for the Serbian VHI-30 (α = 0.95) and good internal consistency for all VHI-30 subscales: physical (α = 0.88), functional (α = 0.88), and emotional (α = 0.88). The interclass correlation coefficient indicated strong test-retest reliability for patients (0.99) and controls (0.84). The mean scores of all 30 items in dysphonic participants were significantly higher than in controls (P < 0.001). Good correlation was obtained between the total scores of VHI-30 and patients’ self-perceived overall severity of dysphonia (ρ = 0.748, P < 0.001). Within the patient group, the female participants displayed significantly higher VHI-30 scores than male participants (Mann-Whitney U test, P < 0.001). The VHI-30 scores showed strong correlation within different patient groups and controls (Spearman correlation coefficient: structural, 0.942; inflammatory, 0.756; neurologic, 0.888; functional, 0.982; controls, 0.882). Conclusions The Serbian VHI-30 is a useful and valuable tool for the evaluation of patients with vocal disorders and for making subsequent clinical decisions. © 2016 The Voice FoundationQuality of lifeQuestionnaireSerbian versionValidityVoice Handicap Index