What is the prevalence of speech problems in patients with Parkinson disease (PD)?

Updated: Aug 29, 2019
  • Author: Robert A Hauser, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
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The laryngeal manifestations of Parkinson disease often lead to decreased participation in the activities of daily living because of an inability to communicate effectively. During the course of the disease, 45-89% of patients report speech problems, and more than 30% find speech problems to be the most debilitating part of the disease.

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