Introduction Younger age of onset and mild cognitive impairment (MCI) are both
independently associated with poorer quality of life (QOL) in Parkinson's disease (PD) …

This study was undertaken to determine the prevalence and correlates of cognitive
impairment (CI) and neuropsychiatric symptoms (NPS) in early, untreated patients with …

The impact of Parkinson's disease on quality of life may vary depending on age at onset. We
investigated the effect of age at onset on quality of life in a large Parkinson's disease …

Background Cognitive impairment (CI) is one of the most feared and debilitating
complications of PD. No therapy has been shown to slow or prevent CI in PD. Objective To …

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 …

Nonmotor symptoms (NMS) are common in patients with established Parkinson's disease
(PD) and have a major impact upon quality of life. We investigated the significance of NMS …

Abstract Background Quality of life (QoL) is known to be impaired in people with Parkinson's
disease (PwPD). Not surprisingly, a considerable effort of health interventions is aimed at …

Objective The objective of this study was to determine the frequency and impact of
subjective cognitive complaint (SCC) in Parkinson's disease (PD) patients with normal …

Background There is limited knowledge on health‐related quality of life (HRQoL) in late‐
stage Parkinson's disease (PD). Objective To assess factors associated with HRQoL in …

Background Poor quality of life (QoL) is a feature of people with Parkinson's disease (PD)
who develop dementia. The relationship between mild cognitive impairment in PD (PD-MCI) …