title: The relationship between subjective self-rating and objective voice assessment measures.
abstract: BACKGROUND
  Comprehensive protocols of voice disorders have to consist of both subjective and objective tools to study vocal performance. Comparing subjective to objective measures is essential to determine their usefulness in assessing dysphonia.
  
  
  OBJECTIVE
  The aim of the study is to study the correlation of objective voice measures and the patient's subjective self-rating assessment.
  
  
  METHODS
  A total of 100 patients with voice complaints due to various pathological disorders were subjected to voice assessment protocol using: auditory perceptual assessment, acoustic voice assessment, aerodynamic measures, and Voice Problem Self-Assessment Scale (VPSS).
  
  
  RESULTS
  The results revealed a variable correlation between functional and emotional clusters of VPSS and overall grade of dysphonia. A moderate correlation between Dysphonia Severity Index (DSI) and VPSS total and emotional cluster was found. Acoustic parameters such as Shim (Shimmer Percent), APQ (Amplitude Perturbation Quotient), and NHR (Noise to Harmonic Ratio), in addition to MPT (Maximum Phonation Time), contributed to total VPSS and emotional cluster scores. The subglottic pressure was the only predictor variable for phonasthenic cluster scores.
  
  
  CONCLUSIONS
  This cross-sectional study highlights that patients' self-perception of a voice problem is related to their difficulty in sustaining controlled loudness and adequate glottic closure rather than in controlling frequency irregularity.
authors.affiliation: The Unit of Phoniatrics, ENT Department, Faculty of Medicine, Alexandria University, Alazaritta, Alexandria, Egypt.
authors.forename: Yehia
authors.initials: Y
authors.lastname: Aboras
authors.forename: Manal
authors.initials: M
authors.lastname: El-Banna
authors.forename: Riham
authors.initials: R
authors.lastname: El-Magraby
authors.forename: Amira
authors.initials: A
authors.lastname: Ibrahim
mesh_terms: D000328:Adult; D000399:Air Pressure; D003430:Cross-Sectional Studies; D055154:Dysphonia / Q000503:physiopathology / Q000523:psychology; D004644:Emotions; D005931:Glottis / Q000503:physiopathology; D006801:Humans; D012647:Self-Assessment; D012720:Severity of Illness Index; D013061:Speech Acoustics; D014831:Voice; D014832:Voice Disorders / Q000503:physiopathology / Q000523:psychology*