of therapy/no intervention, and again after another 6 to 8 weeks. Analysis was conducted using SPSS(X). Results: Voice therapy improved self-rated (F = 12.2, P = 0.001), and expert-rated voice quality (F = 17.5, P < 0.001). Therapy also improved one acoustic analysis parameter-shimmer (amplitude perturbation: F = 5.9, P < 0.01); however, this effect was not sustained at follow-up. There were no differences between the groups in psychological distress or quality of life over time. Conclusion: (1) Voice therapy for dysphonia is an effective treatment in terms of subjective reports. (2) Most objective acoustic parameters showed poor correlation with global reports of voice quality. (3) Voice therapy had surprisingly little impact on psychological distress or general health status.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.