The aim of the study was to systematically review published literature about the relationship between dysphonia, anxiety and quality of life. The research strategy was to search for the keywords "randomized clinical trial", "anxiety", "voice", "voice disorders", "voice quality", "voice training" in the literature databases of MedLine (PubMed), Cochrane Central, Embase, PsycINFO, Lilacs, SciELO. We included randomized clinical trials of voice treatment involving anxiety and quality of life outcomes. The GRADE approach was used, which aims to determine the quality of evidence for each outcome. Of 137 studies identified, three were included according to our inclusion and exclusion criteria. Most of the studies included presented methodological limitations, inaccurate results and absence of odds ratio. Among the limitations of this study, some findings were related to the patient's self-report and two studies were performed with the same sample. Despite the small number of studies, it is found that anxiety and quality of life are associated with dysphonia.
Anxiety; Dysphonia; Quality of life; Voice
