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Prevalence of comorbidities in a convenience sample of 341 idiopathic Parkinson patients (N = 341). Shown is the percentage of Parkinson patients with various comorbidities based on medical chart review; only comorbidities occurring in at least 10% of the sample are shown. GERD = gastroesophageal reflux disease; RBSD = rapid Eye Movement (REM) behavior sleep disorder. None have deep brain stimulation.
