Abstract
Objective: To evaluate the reliability and validity of the Italian version of the VTD scale (I-VTD scale). Study Design: Cross-sectional, nonrandomized, prospective study with controls. Methods: For the item generation, a cross-cultural adaptation and translation process was performed following the back translation process (phase 1). For reproducibility analysis (phase 2), 102 patients with dysphonia were recruited (internal consistency analysis); 57 of them completed the I-VTD scale twice (test-retest reliability analysis). Seventy-three vocally healthy participants completed the I-VTD scale for normative data generation (phase 3). For validity analysis (phase 4), the scores obtained by patients with dysphonia and by vocally healthy participants were compared (construct validity analysis); in addition, 45 patients with dysphonia completed both the I-VTD scale and the Italian version of the Voice Handicap Index for criterion validity analysis. Finally, for responsiveness analysis (phase 5), a cohort of 30 patients with muscle tension dysphonia was recruited, and scores of the I-VTD scale before and after voice therapy were compared. Results: Both the internal consistency and the test-retest reliability of the I-VTD scale were satisfactory. The scores obtained by patients with dysphonia and vocally healthy participants were significantly different. Moderate correlations between the Italian version of the Voice Handicap Index and the I-VTD scores were found. Finally, the scores of the I-VTD scale obtained in pretreatment conditions appeared to be significantly higher than those obtained after successful voice therapy. Conclusion: The I-VTD scale appears a reliable and valid instrument for the assessment of vocal tract discomfort in Italian-speaking patients.
| Original language | English |
|---|---|
| Pages (from-to) | 115-123 |
| Journal | Journal of Voice |
| Volume | 33 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2019 |
Fingerprint
Keywords
- Cross-cultural adaptation
- Dysphonia
- Quality of life
- Vocal tract discomfort
- Voice
ASJC Scopus subject areas
- Otorhinolaryngology
- Speech and Hearing
- LPN and LVN
Cite this
Cross-cultural Adaptation and Validation of the Italian Version of the Vocal Tract Discomfort Scale (I-VTD). / Robotti, Carlo; Mozzanica, Francesco; Pozzali, Ilaria; D'Amore, Laura; Maruzzi, Patrizia; Ginocchio, Daniela; Barozzi, Stafania; Lorusso, Rosaria; Ottaviani, Francesco; Schindler, Antonio.
In: Journal of Voice, Vol. 33, No. 1, 2019, p. 115-123.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cross-cultural Adaptation and Validation of the Italian Version of the Vocal Tract Discomfort Scale (I-VTD)
AU - Robotti, Carlo
AU - Mozzanica, Francesco
AU - Pozzali, Ilaria
AU - D'Amore, Laura
AU - Maruzzi, Patrizia
AU - Ginocchio, Daniela
AU - Barozzi, Stafania
AU - Lorusso, Rosaria
AU - Ottaviani, Francesco
AU - Schindler, Antonio
PY - 2019
Y1 - 2019
N2 - Objective: To evaluate the reliability and validity of the Italian version of the VTD scale (I-VTD scale). Study Design: Cross-sectional, nonrandomized, prospective study with controls. Methods: For the item generation, a cross-cultural adaptation and translation process was performed following the back translation process (phase 1). For reproducibility analysis (phase 2), 102 patients with dysphonia were recruited (internal consistency analysis); 57 of them completed the I-VTD scale twice (test-retest reliability analysis). Seventy-three vocally healthy participants completed the I-VTD scale for normative data generation (phase 3). For validity analysis (phase 4), the scores obtained by patients with dysphonia and by vocally healthy participants were compared (construct validity analysis); in addition, 45 patients with dysphonia completed both the I-VTD scale and the Italian version of the Voice Handicap Index for criterion validity analysis. Finally, for responsiveness analysis (phase 5), a cohort of 30 patients with muscle tension dysphonia was recruited, and scores of the I-VTD scale before and after voice therapy were compared. Results: Both the internal consistency and the test-retest reliability of the I-VTD scale were satisfactory. The scores obtained by patients with dysphonia and vocally healthy participants were significantly different. Moderate correlations between the Italian version of the Voice Handicap Index and the I-VTD scores were found. Finally, the scores of the I-VTD scale obtained in pretreatment conditions appeared to be significantly higher than those obtained after successful voice therapy. Conclusion: The I-VTD scale appears a reliable and valid instrument for the assessment of vocal tract discomfort in Italian-speaking patients.
AB - Objective: To evaluate the reliability and validity of the Italian version of the VTD scale (I-VTD scale). Study Design: Cross-sectional, nonrandomized, prospective study with controls. Methods: For the item generation, a cross-cultural adaptation and translation process was performed following the back translation process (phase 1). For reproducibility analysis (phase 2), 102 patients with dysphonia were recruited (internal consistency analysis); 57 of them completed the I-VTD scale twice (test-retest reliability analysis). Seventy-three vocally healthy participants completed the I-VTD scale for normative data generation (phase 3). For validity analysis (phase 4), the scores obtained by patients with dysphonia and by vocally healthy participants were compared (construct validity analysis); in addition, 45 patients with dysphonia completed both the I-VTD scale and the Italian version of the Voice Handicap Index for criterion validity analysis. Finally, for responsiveness analysis (phase 5), a cohort of 30 patients with muscle tension dysphonia was recruited, and scores of the I-VTD scale before and after voice therapy were compared. Results: Both the internal consistency and the test-retest reliability of the I-VTD scale were satisfactory. The scores obtained by patients with dysphonia and vocally healthy participants were significantly different. Moderate correlations between the Italian version of the Voice Handicap Index and the I-VTD scores were found. Finally, the scores of the I-VTD scale obtained in pretreatment conditions appeared to be significantly higher than those obtained after successful voice therapy. Conclusion: The I-VTD scale appears a reliable and valid instrument for the assessment of vocal tract discomfort in Italian-speaking patients.
KW - Cross-cultural adaptation
KW - Dysphonia
KW - Quality of life
KW - Vocal tract discomfort
KW - Voice
UR - http://www.scopus.com/inward/record.url?scp=85032204763&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85032204763&partnerID=8YFLogxK
U2 - 10.1016/j.jvoice.2017.09.001
DO - 10.1016/j.jvoice.2017.09.001
M3 - Article
VL - 33
SP - 115
EP - 123
JO - Journal of Voice
JF - Journal of Voice
SN - 0892-1997
IS - 1
ER -