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Morawska J, Pietruszewska W, Politański P, Niebudek-Bogusz E. Population characteristics and self-assessment of speaking and singing voice in Polish contemporary commercial music singers-an exploratory, cross-sectional study. Front Public Health 2024; 12:1256152. [PMID: 38813421 PMCID: PMC11133608 DOI: 10.3389/fpubh.2024.1256152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 04/30/2024] [Indexed: 05/31/2024] Open
Abstract
Background The domination of the Contemporary Commercial Music (CCM) industry in music markets has led to a significant increase in the number of CCM performers. Performing in a wide variety of singing styles involves exposing CCM singers to specific risk factors potentially leading to voice problems. This, in turn, necessitates the consideration of this particular group of voice users in the Occupational Health framework. The aim of the present research was threefold. First, it sought to profile the group of Polish CCM singers. Second, it was designed to explore the prevalence of self-reported voice problems and voice quality in this population, in both speech and singing. Third, it aimed to explore the relationships between voice problems and lifetime singing involvement, occupational voice use, smoking, alcohol consumption, vocal training, and microphone use, as potential voice risk factors. Materials and methods The study was conducted in Poland from January 2020 to April 2023. An online survey included socio-demographic information, singing involvement characteristics, and singers' voice self-assessment. The prevalence of voice problems was assessed by the Polish versions of the Vocal Tract Discomfort Scale (VTDS) and the Singing Voice Handicap Index (SVHI). Also, a self-reported dysphonia symptoms protocol was applied. The perceived overall voice quality was assessed by a Visual Analogue Scale (VAS) of 100 mm. Results 412 singers, 310 women and 102 men, completed the survey. Nearly half of the studied population declared lifetime singing experience over 10 years with an average daily singing time of 1 or 2 h. 283 participants received vocal training. For 11.4% of respondents, singing was the primary income source, and 42% defined their career goals as voice-related. The median scores of the VTDS were 11.00 (0-44) and 12.00 (0-40) for the Frequency and Severity subscales, respectively. The median SVHI score of 33 (0-139) was significantly higher than the normative values determined in a systematic review and meta-analysis (2018). Strong positive correlations were observed between SVHI and both VTD subscales: Frequency (r = 0.632, p < 0.001) and Severity (r = 0.611, p < 0.001). The relationships between most of the other variables studied were weak or negligible. Conclusion The examined CCM singers exhibited substantial diversity with regard to musical genre preferences, aspirations pertaining to singing endeavors, career affiliations, and source of income. Singing voice assessment revealed a greater degree of voice problems in the examined cohort than so far reported in the literature, based on the SVH and VTDS.
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Affiliation(s)
- Joanna Morawska
- Department of Otolaryngology, Head and Neck Oncology, Medical University of Lodz, Łódź, Poland
| | - Wioletta Pietruszewska
- Department of Otolaryngology, Head and Neck Oncology, Medical University of Lodz, Łódź, Poland
| | - Piotr Politański
- Department of Electromagnetic Hazards, Nofer Institute of Occupational Medicine, Łódź, Poland
| | - Ewa Niebudek-Bogusz
- Department of Otolaryngology, Head and Neck Oncology, Medical University of Lodz, Łódź, Poland
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Irkli FA, Çiyiltepe MM. Vocal Tract Discomfort Scale: Adaptation, Validity, and Reliability of the Turkish Version. J Voice 2023:S0892-1997(23)00357-0. [PMID: 38114368 DOI: 10.1016/j.jvoice.2023.10.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Currently, there is no Turkish assessment tool available for the evaluation of vocal tract discomfort. The objective of this study is to cross-cultural adaptation of the Vocal Tract Discomfort Scale (VTDS) to Turkish and assess its validity and reliability. METHOD The study was conducted with a total of 214 participants, consisting of 121 individuals with voice disorders and 93 individuals without voice disorders. All participants completed the Voice Handicap Index (VHI), Voice-Related Quality of Life (VRQOL), and VTDS. To conduct a test-retest reliability assessment, the VTDS was administered again to 54 participants within 7-14 days. RESULTS The internal consistency of VTDS was evaluated using Cronbach's alpha coefficient. The Cronbach's alpha coefficient for the scale was calculated at 0.964, while it was 0.922 for the frequency subscale and 0.930 for the severity subscale. It was found that there was a high degree of correlation (rho = 0.868, frequency rho = 0.847, severity rho = 0.875, P < 0.001) between the two administrations, indicating the reliability of the test-retest assessment. To assess the criterion validity of the scale, correlations between VTDS total scores and VHI and VRQOL scales were examined. Accordingly, it was found that there was a high degree of correlation between VTDS and VHI (rho = 0.631, frequency rho = 0.635, severity rho = 0.616, P < 0.001). It was also observed that there was a high degree of negative correlation between VTDS and VRQOL (rho = -0.701, frequency rho = -0.702, severity rho = -0.692, P < 0.001). It was assumed that there would be statistically significant differences in VTDS total scores among the diagnostic groups, and it was found that there was a significant difference between the two groups (U = 1095.000, z = -10.110, P < 0.001). These findings support the discriminative validity of VTDS. CONCLUSIONS The Turkish version of VTDS is a valid and reliable scale that can assess perceptible symptoms and sensations in the vocal tract in terms of both frequency and severity.
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Affiliation(s)
| | - Müge Müzeyyen Çiyiltepe
- Tarsus University, Faculty of Health Sciences, Speech and Language Therapy Department, Tarsus, Mersin, Türkiye.
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Robotti C, Schindler A, Lechien JR, Di Sabatino A, Capobianco S, Schindler A, Ottaviani F, Sims HS, Bertino G, Benazzo M, Mozzanica F. Prevalence of Laryngopharyngeal Reflux Symptoms, Dysphonia, and Vocal Tract Discomfort in Amateur Choir Singers. J Voice 2023; 37:932-944. [PMID: 34404581 DOI: 10.1016/j.jvoice.2021.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/15/2021] [Accepted: 06/20/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Vocal tract discomfort (VTD), dysphonia, and laryngopharyngeal reflux (LPR) symptoms are complaints frequently reported by amateur singers. There are two aims of this study. The first is to evaluate the prevalence of these symptoms using validated questionnaires. The second is to correlate singing-related variables with the questionnaire responses. METHODS A total of 392 amateur choir singers (ACS) and 514 control subjects completed an online survey divided into four parts: (1) clinical and demographic characteristics, (2) training in singing and singing experience, (3) history of gastroesophageal reflux disease and LPR symptoms, (4) validated questionnaires. Specifically, the reflux symptom index (RSI), the vocal tract discomfort scale (VTDS), and the voice symptom scale (VoiSS) were included to analyze the actual burden related to LPR symptoms, VTD, and dysphonia. RESULTS ACS demonstrated a healthier lifestyle and a lower prevalence of gastroesophageal reflux disease symptoms in comparison with control subjects. ACS scored significantly higher in VTDS and VoiSS than control subjects, while no differences in the RSI results were found. Significant correlations among the questionnaires' results were demonstrated. Occasional professional singing was the variable influencing VTDS and VoiSS results the most. CONCLUSION ACS do not evidently manifest a higher impairment connected to LPR (RSI score), while they do report higher levels of voice (VoiSS score) and vocal tract (VTDS score) impairments, in comparison with control subjects. The relevant correlations among the PRO measures suggest that LPR symptoms, VTD, and dysphonia are related to each other. Given the relevant repercussion on the severity of VTD and dysphonia, providers should specifically ask about occasional professional singing when treating amateur singers.
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Affiliation(s)
- Carlo Robotti
- Department of Otolaryngology - Head and Neck Surgery, University of Pavia, IRCCS Policlinico San Matteo Foundation, Pavia, Italy; Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Antonio Schindler
- Department of Biochemical and Clinical Science "L. Sacco", Luigi Sacco University Hospital, University of Milan, Milan, Italy
| | - Jerome R Lechien
- Department of Otolaryngology - Head and Neck Surgery, Foch Hospital, Paris Saclay University, Paris, France
| | - Antonio Di Sabatino
- Department of Internal Medicine, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Silvia Capobianco
- Department of Surgical Pathology, Medical, Molecular and Critical Area, ENT section, Pisa, Italy
| | - Antonio Schindler
- Department of Biochemical and Clinical Science "L. Sacco", Luigi Sacco University Hospital, University of Milan, Milan, Italy
| | - Francesco Ottaviani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Department of Otorhinolaryngology, IRCCS Multimedica, Milan, Italy
| | - H Steven Sims
- Chicago Institute for Voice Care, Department of Otolaryngology, University of Illinois Medical Center, Chicago, Illinois
| | - Giulia Bertino
- Department of Otolaryngology - Head and Neck Surgery, University of Pavia, IRCCS Policlinico San Matteo Foundation, Pavia, Italy
| | - Marco Benazzo
- Department of Otolaryngology - Head and Neck Surgery, University of Pavia, IRCCS Policlinico San Matteo Foundation, Pavia, Italy; Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Francesco Mozzanica
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy; Department of Otorhinolaryngology, IRCCS Multimedica, Milan, Italy.
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Saeedi S, Aghajanzadeh M, Khoddami SM, Dabirmoghaddam P, Jalaie S. Relationship of cepstral analysis with voice self-assessments in dysphonic and normal speakers. Eur Arch Otorhinolaryngol 2023; 280:1803-1813. [PMID: 36229669 DOI: 10.1007/s00405-022-07690-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/04/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE This study aimed to investigate the relationship of cepstral analysis (Cepstral Peak Prominence [CPP] and Cepstral Peak Prominence-Smoothed [CPPS]) with voice self-assessments (The Persian version of vocal tract discomfort [VTDp] scale and non-standard hoarseness self-assessment [NHS] questionnaire). METHODS 223 participants (159 with and 64 without dysphonia) were asked to utter the vocal tasks namely vowels /a/ and /e/, six standard sentences, and a non-standard connected speech sample. CPP and CPPS were calculated in these three vocal tasks using the "Praat" software. The participants also asked to complete the VTDp scale and the NHS questionnaire. RESULTS The means of frequency and severity the VTDp and the means of NHS were statistically different between the dysphonic and normal voice groups (P < 0.05), except for tickling (P > 0.05). There was a very low significant correlation between cepstral analysis with aching and in the dysphonic group (P < 0.05). However, a very low to low significant correlation between cepstral analysis with burning, tight, aching, tickling, sore, and both frequency and severity subscales scores of the VTDp in the normal voice group (P < 0.05). Moreover, the means of the cepstral analysis did not differ significantly between all scores of the NHS in the dysphonic the normal voice groups (P > 0.05), except for 1 with 3, 4, and 5 in the dysphonic group (P < 0.05). CONCLUSION The cepstral analysis can provide some information about the status of vocal tract and person's perception of his/her own voice quality.
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Affiliation(s)
- Saeed Saeedi
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahshid Aghajanzadeh
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
| | - Seyyedeh Maryam Khoddami
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Payman Dabirmoghaddam
- Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shohreh Jalaie
- Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
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Cunsolo F, Ottaviani V, Capobianco S, Calcinoni O, Dellacà RL. Simultaneous monitoring of vocal doses and breathing patterns in professional singers. Comput Biol Med 2022; 144:105352. [DOI: 10.1016/j.compbiomed.2022.105352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 11/28/2022]
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Lukaschyk J, Abel J, Brockmann-Bauser M, Keilmann A, Braun A, Rohlfs AK. Cross-Validation and Normative Values for the German Vocal Tract Discomfort Scale. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:1855-1868. [PMID: 34038170 DOI: 10.1044/2021_jslhr-20-00462] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose The Vocal Tract Discomfort Scale (VTD Scale) is a self-rating questionnaire investigating physical symptoms in the larynx associated with vocal pathology. The aim of this work was to investigate the reliability, validity, sensitivity, and specificity of the first German version and to provide normative data with thresholds for pathology and a scaling scheme. Study Design A retrospective multicenter study was performed. Method A total of 571 participants (409 female and 162 male), with a mean age of 47.2 years, were recruited at three German centers; of these, there were 447 participants with voice disorder and 124 vocally healthy participants. The clinical examination consisted of patient history, visual laryngeal examination, acoustic and aerodynamic assessment, perceptual analysis by the Grading-Roughness-Breathiness-Asthenia-Strain Scale, and subjective evaluation using the VTD Scale and the Voice Handicap Index (VHI). Statistics included group comparisons (t test and analysis of variance), Pearson correlation coefficient (between VTD Scale and VHI), and Cronbach's alpha to assess validity and reliability. Analysis of receiver operating characteristics was performed to examine VTD Scale's discriminatory ability and provide a cutoff score. Additionally, percentiles were applied to provide VTD Scale ranges. Results There were highly significant differences between healthy participants and participants with voice disorder regarding the total score and both subscales of the VTD Scale. Internal consistency was excellent (α = .928). We found moderate, positive correlation between the VTD Scale and VHI (ρ = .596, p < .001). Receiver operating characteristics analysis showed an area under the curve of 0.876 (p < .001, 95% confidence interval [0.846, 0.906]). VTD Scale ranges were no (score: 0-13), mild (score: 14-26), moderate (score: 27-40), and severe (score: 41-96) disorder. Conclusions Results confirm an excellent reliability and validity of the German VTD Scale. It provides additional and independent diagnostic information and is a useful instrument to complement voice assessment. The scaling into four severity subgroups allows the tool to be used for screening patients and considers a transferral to a voice specialist.
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Affiliation(s)
- Julia Lukaschyk
- Department of Otolaryngology, Hannover Medical School, Germany
| | - Jakob Abel
- ENT, Phoniatrics and Pedaudiology-Klosterstern Hamburg, Germany
| | - Meike Brockmann-Bauser
- Department of Phoniatrics and Speech Pathology, Clinic for Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, Switzerland
- University of Zurich, Switzerland
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Gantner S, Deitmerg U, Schuster M. Vocal tract discomfort in caregivers for the elderly during an interval of the COVID-19 pandemic. LOGOP PHONIATR VOCO 2021; 47:194-201. [PMID: 33988080 DOI: 10.1080/14015439.2021.1915376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND During the coronavirus disease 2019 (COVID-19) pandemic, professional caregivers caring for the elderly may experience more vocal tract problems in addition to regular high vocal demands while wearing face masks/coverings. METHODS AND PARTICIPANTS Vocal tract discomfort (VTD) was assessed in 64 caregivers in one home for the elderly (64% participation rate) in June 2020 using the German version of the VTD scale. RESULTS More than one-half of the participating caregivers experienced VTD, described mostly as dryness, irritability, and tightness. Approximately, 80% reported that sensations were not perceived before enhanced infection prevention standards were implemented. CONCLUSIONS Among caregivers caring for the elderly during the COVID-19 pandemic, special care should be focused on the voice and vocal tract well-being.
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Affiliation(s)
- Sophia Gantner
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University, Munich, Germany
| | | | - Maria Schuster
- Department of Otorhinolaryngology, Head and Neck Surgery, Ludwig-Maximilians-University, Munich, Germany.,Department of Otorhinolaryngology, Phoniatrics and Pediatric Audiology, Metropol Medical Center, Nuremberg, Germany
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Saeedi M, Yadegari M, Aghadoost S, Naderi M. Vocal tract discomfort and voice handicap index in patients undergoing thyroidectomy. LOGOP PHONIATR VOCO 2020; 47:49-55. [PMID: 33371756 DOI: 10.1080/14015439.2020.1864466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
PURPOSE This study aims to investigate the frequency and severity of vocal tract discomfort (VTD) symptoms and to determine the relationship between VTD and type of thyroidectomy, voice problem history, vocal abuse, and misuse behaviors, and the voice handicap index (VHI) in the thyroidectomy patients undergoing thyroidectomy, pre- and post-operatively pre- and post-thyroidectomy. MATERIALS The sample comprised 21 thyroidectomy patients undergoing thyroidectomy, including 10 patients with total thyroidectomy and 11 patients with partial thyroidectomy. The participants underwent videolaryngoscopy examination and completed the voice history questionnaire, the VTD scale, and the VHI, before and after the surgery. RESULTS Dryness was the most frequently occurring symptom, pre- and post-thyroidectomy. Participants with total thyroidectomy reported significantly higher frequency and severity of tickling than those in the preoperative status (p<.05). The frequency and severity of many VTD symptoms in the participants with voice problems and a vocal abuse and misuse history were higher than those without such a history at both assessment times (p<.05). There was significant correlation between the frequency and severity of VTD and VHI scores, pre-thyroidectomy pre-operatively (r = 0.488-0.575, p<.05). CONCLUSIONS An increment in the frequency and severity of tickling was reported by total thyroidectomy patients, post-thyroidectomy post-operatively. The type of thyroidectomy, voice problem history, and vocal abuse and misuse behaviors seem to influence the frequency and severity of VTD. Considering the correlation between VTD and VHI, the VTD scale provides important clinical information and can be used for evaluation and consultation purposes.
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Affiliation(s)
- Masoumeh Saeedi
- New Hearing Technologies Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Meysam Yadegari
- New Hearing Technologies Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Samira Aghadoost
- Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Naderi
- New Hearing Technologies Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Galletti B, Sireci F, Mollica R, Iacona E, Freni F, Martines F, Scherdel EP, Bruno R, Longo P, Galletti F. Vocal Tract Discomfort Scale (VTDS) and Voice Symptom Scale (VoiSS) in the Early Identification of Italian Teachers with Voice Disorders. Int Arch Otorhinolaryngol 2020; 24:e323-e329. [PMID: 32754244 PMCID: PMC7394657 DOI: 10.1055/s-0039-1700586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 09/17/2019] [Indexed: 11/10/2022] Open
Abstract
Introduction The current Italian law does not include any guidance regarding voice education, prevention of voice disorders and screening in subjects with high vocal loading such as teachers. Objectives We aimed to check the correlation between the Vocal Tract Discomfort Scale (VTDS) with the Voice Symptom Scale (VoiSS) for the evaluation of Italian teachers. In addition, we aimed to investigate whether there are differences in the frequency and intensity of discomfort symptoms in teachers with disabilities comparing vocal tract discomfort symptoms in teachers with high risk (HRVD) and low risk (LRVD) of vocal disorders according to the VoiSS cutoff (> 15.5). Methods We analyzed 160 Italian teachers (111 women and 49 men) that completed the VTDS and VoiSS at vocal evaluation. The Spearman correlation test was applied to all variables. The Mann-Whitney U test was used to compare the average number of discomfort symptoms among HRVD and LRVD teachers. Results A moderate positive correlation was observed between the average number, frequency, and intensity of discomfort symptom and the total score, physical domain score, and limitation domain score of the VoiSS. Only the emotional domain score of the VoiSS showed a weak positive correlation ( p < 0.001). Teachers considered in the HRVD group according to the VoiSS score had a higher number, frequency, and intensity of vocal tract discomfort symptoms. Conclusion There is correlation between the VTDS and VoiSS scales. Like the VoiSS, the VTDS is a questionnaire that detects HRVD teachers. Therefore, the results suggest that both questionnaires could be useful for a preventive voice program for Italian teachers.
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Affiliation(s)
- Bruno Galletti
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
| | - Federico Sireci
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
- Section of ENT, ARNAS Fatebenefratelli Hospital, Palermo Italy
| | - Roberta Mollica
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
| | - Elisabetta Iacona
- Section of Audiology, Fondazione IRCCS Ca'Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesco Freni
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
| | - Francesco Martines
- Department Bio.Ne.C., Section of ENT, University of Palermo, Palermo Italy
| | - Enrique Perellò Scherdel
- Servicio de Otorrinolaringologia, Hospital General Universitari vall D'Hebron Universitat Autonoma de Barcelona, Catalunya, Spain
| | - Rocco Bruno
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
| | - Patrizia Longo
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
| | - Francesco Galletti
- Department of Adult and Development Age Human Pathology “Gaetano Barresi,” unit of otorhinolaryngology, University of Messina, Messina, Italy
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Lee HN, Yoo JY, Han JH, Park YS, Jung DY, Park JH. Transcultural Adaptation and Validation of the Korean Version of the Vocal Tract Discomfort Scale. J Voice 2020; 36:143.e15-143.e23. [PMID: 32576525 DOI: 10.1016/j.jvoice.2020.04.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES The present study translated the Vocal Tract Discomfort Scale (VTDS) into Korean (K-VTDS) and evaluated its reliability and validity. STUDY DESIGN This was a prospective study. METHODS 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. RESULTS 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. CONCLUSION The K-VTDS is a reliable and valid instrument for voice assessment for voice disorders in Korean-speaking patients.
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Affiliation(s)
- Ha Na Lee
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University Chosun Hospital, Gwangju, South Korea
| | - Jae Yeon Yoo
- Department of Speech Language Pathology, Honam University, Gwangju, South Korea
| | - Ji Hye Han
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea
| | - Yoon Sik Park
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea
| | - Do Yoon Jung
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea
| | - Jun Hee Park
- Department of Otorhinolaryngology - Head and Neck Surgery, Chosun University College of Medicine, Gwangju, South Korea.
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