Motor and non-motor predictors of illness-related distress in Parkinson's disease.
OBJECTIVE: To identify motor and non-motor symptoms independently associated with distress in Parkinson's disease (PD). METHOD: Clinical and patient-reported data from 118 people with PD (mean age and PD-duration, 64 and 8 years) were analyzed regarding associations with patient-reported distress using multiple regressions (controlling for age). RESULTS: Non-motor symptoms independently associated