It is possible to observe that dysphonia has a prevalence that varies widely, Mohammadzadeh et al (2017), Nygren et al (2012), Maia et al (2004); Therefore, this study is relevant to the extent that valid and updated information will be provided on how many children have voice disorders and the incidence of vocal pathologies in relation to the epidemiological criteria that are presented later. It is possible to observe that dysphonia has a prevalence that varies widely, Mohammadzadeh et al (2017), Nygren et al (2012), Maia et al (2004); Therefore, this study is relevant to the extent that valid and updated information will be provided on how many children have voice disorders and the incidence of vocal pathologies in relation to the epidemiological criteria that are presented later.
