The prevalence of Parkinson's disease (PD) and other types of parkinsonism in three elderly
populations of central Spain was investigated using a door‐to‐door, two‐phase approach …

Nonmotor symptoms (NMSs) of Parkinson's disease (PD) are common, but they are often
underrecognized in clinical practice, because of the lack of spontaneous complaints by the …

Sleep disorders are common and well documented in patients with Parkinson's disease
(PD). However, most data on sleep in patients with PD are derived from selected patient …

Although diagnosed by characteristic motor features, Parkinson's disease may be preceded,
and is frequently accompanied by, a wide range of cognitive and neuropsychiatric features …

We report a long‐term outcome on a large cohort of Japanese patients with Parkinson's
disease (PD). A total of 1,768 (793 men, 975 women) consecutive patients visited our clinic …

Background and purpose The prevalence and duration of non‐motor symptoms (NMS) in
prodromal Parkinson's disease (PD) has not been extensively studied. The aim of this study …

Incidence studies of Parkinson's disease (PD) are important for both health‐care planning
and epidemiological research. This report reviews the methods and results of previous …

Background: Non‐motor symptoms are detrimental to health‐related quality of life (HRQoL)
of Parkinson's disease patients. In this study, the Non‐Motor Symptoms Scale (NMSS) was …

Introduction The overall frequency of postural abnormalities (PA) in Parkinson's disease
(PD) is unknown. We evaluated the overall prevalence of PA and assessed the association …

The objective of this study was to assess the temporal relationship between changes in
predominant motor symptoms and incident dementia in Parkinson's disease (PD). A …