Do Parkinson disease subject and caregiver-reported Epworth sleepiness scale reponses correlate?

摘要

Objective: Subjective excessive daytime sleepiness, commonly measured with the Epworth Sleepiness Scale (ESS), is associated with cognitive impairment in Parkinson disease (PD). Significant correlation between subject and informant responses has been reported in neurologically healthy individuals. We sought to assess this correlation in patients with PD.