Adaptation and Validation of the Italian Singing Voice Handicap Index-10 (SVHI-10-IT) (Validation of I-SVHI)

Study type

• Study topic:
  Other
• Study topic, other:
  To adapt and validate the Italian version of the Singing Voice Handicap Index-10 (SVHI-10-IT) and to determine the cut-off value using videolaryngostroboscopy diagnoses as external criteria.
• Study type:
  Non-interventional study
• Scope of the study:
  Assessment of risk minimisation measure implementation or effectiveness
• Data collection methods:
  Primary data collection

Non-interventional study

• Non-interventional study design:
  Cross-sectional

Population studied

• Short description of the study population:
  Singers were included from different music genres (Contemporary Commercial Music and Classic) and from a range of experience levels (singing student, amateur or professional).
• Age groups:
  Adults (18 to < 46 years)

  Adults (46 to < 65 years)

  Adults (65 to < 75 years)
• Estimated number of subjects:
  100

Study design details

• Main study objective:
  The aim of the present study was to adapt and validate the Italian version of Singing Voice Handicap Index-10 (SVHI-10-IT).
• Data analysis plan:
  We analyzed the Singing Voice Handicap Index-10 (SVHI-10-IT) statements collected in our study to adapt and validate the Italian version using four standard questionnaire validation steps: 1) Translation procedure of the SVHI-10-IT, 2) Test-Retest Reliability, 3) Internal validity, 4) External validity. Subsequently, 5) we used the Principal Component Analysis (PCA) to explore the SVHI-10-IT factorial structure and identify the latent variables indicated by our observed variables. Finally, we performed a confirmatory factor analysis (CFA) via 6) Structural Equation Modelling (SEM) to confirm the presence of one or more latent variable.