Quality of life in Parkinson's disease patients with motor fluctuations and dyskinesias in five European countries.

Little is known about the relationship between specific subtypes of treatment-associated motor complications and different domains of health-related Quality of Life (QoL) in patients with Parkinson's disease (PD). Larger studies that investigate these aspects within a cross-cultural setting are scarce.To assess QoL and its association with on-off fluctuations, peak-dose dyskinesias, biphasic dyskinesias, and off-dystonias in PD patients from five European countries.Data from 817 PD patients were collected cross-sectionally in France, Germany, Italy, Spain, and the UK. QoL was measured with the generic EuroQoL 5-Dimension questionnaire (EQ-5D) and the disease-specific Parkinson's Disease Que…