… with impaired cognition had a disease duration less than 5 years. Generally it is assumed
that cognitive impairment may develop early in the disease … only late in the disease course.4 …

… Cognitive impairment (CI) is a common nonmotor complication of Parkinson's disease (PD), …
variable, both in terms of what cognitive domains are impaired, and the timing of onset and …

… cognition can be identified at the time of PD diagnosis in some patients and this mild cognitive
impairment … Although PD-MCI is a risk factor for developing Parkinson's disease dementia …

Prospective studies conducted during the last decade have shown that the majority of patients
with Parkinson’s disease (PD) develop dementia. In addition, using a variety of definitions …

… a state of mild cognitive impairment (MCI) in Parkinson's disease (PD) (PD-MCI) that would
be analogous to the MCI that is posited as a precursor of Alzheimer's disease (AD). We …

… While Parkinson’s disease (PD) traditionally has been defined by its … such as cognitive
impairment and dementia are increasingly recognized as part of PD. Mild cognitive impairment is …

… 1DF) is the most important factor in the development of cognitive impairment in PD. … cognitive
impairment from retrospective chart reviews showed that severity of cognitive impairment …

… Mild cognitive impairment (MCI) is defined as a transitional … or objective cognitive impairment
and little or no impairment in … the underlying pathogenesis of cognitive impairment, possible …

… Cognitive impairment (CI) and dementia are frequent and debilitating features associated
with Parkinson's disease … of CI over the course of the disease. The use of different tools may …

… There is growing interest in identifying Parkinson's disease (PD) patients with mild cognitive
impairment (PD-MCI), but widely disparate criteria have been used. We assessed 143 PD …