Background Identification and characterization of Parkinson's disease (PD) in its prodromal
stage is crucial. Objective The objective of this study was to investigate the association …

Objective The objective of this study was to validate the recently updated research criteria for
prodromal Parkinson's disease (pPD) proposed by the International Parkinson's Disease …

Abstract Background Recently, the International Parkinson and Movement Disorder Society
has defined research criteria for prodromal Parkinson's disease (PD), but to date their …

Objectives The objectives of this study were to investigate (1) the annual rate of progression
of motor and cognitive symptoms and (2) baseline predictors of different modalities for this …

Background Lifestyle factors may contribute to the development of Parkinson's disease, but
little is known about factors that influence progression. The objective of the current study was …

Background PREDICT‐PD is a United Kingdom population‐based study aiming to stratify
individuals for future Parkinson's disease (PD) using a risk algorithm. Methods A randomly …

Background Identifying individuals at risk of developing Parkinson's disease (PD) is critical
to define target populations for future neuroprotective trials. Objective The objective of this …

Background: The research criteria for prodromal PD of the MDS propose a new approach for
the assessment of the individual probability of prodromal PD. These criteria require a testing …

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 …

Objective: To determine progression and prognostic factors of progression rate of motor
impairment, disability, and quality of life (QoL) in patients with newly diagnosed Parkinson's …