Normative values for singing voice handicap index - systematic review and meta-analysis
Valores normativos para o índice de desvantagem vocal no canto - revisão sistemática e metanálise
Braz. j. otorhinolaryngol. (Impr.); 86 (4), 2020
Publication year: 2020
Abstract Introduction There are no official diagnostic protocols for singing voice assessment. In this publication, on the basis of a literature review, standards for the singing voice handicap index exclusively dedicated to voice disorders in singing have been given. Objective The study aims to determine the normative values for the singing voice handicap index. Methods The study is a systematic review and a meta-analysis. A systematic literature search was performed using PubMed to access relevant databases and to locate outcome studies. The "inclusion" criteria were as follows: English language, original papers and human studies retrospective and prospective papers, cross-sectional and case-control studies. Results Eight articles were included for the final analysis. The normative value for the singing voice handicap index was 20.35 with a confidential range of 10.6-30.1 for a group of 729 healthy subjects whose voices were judged as normal, with an age range of 16-64 years. Conclusion The mean normative value of the singing voice handicap index was 20.35 with the confidence levels between 10.6 and 30.1.
Resumo Introdução Não há protocolos diagnósticos oficiais para avaliação de voz no canto. Neste estudo baseado em uma revisão de literatura, são fornecidos padrões para o índice de desvantagem vocal no canto exclusivamente dedicado a distúrbios vocais no canto. Objetivo Determinar os valores normativos para o índice de desvantagem vocal no canto. Método O estudo é uma revisão sistemática com metanálise. Uma busca sistemática da literatura foi feito no PubMed para acessar bancos de dados relevantes e para localizar estudos de desfecho.