Quality of life and mild cognitive impairment in early Parkinson's disease: does subtype matter?

J Parkinsons Dis. 2014;4(3):331-6. doi: 10.3233/JPD-140390.

Abstract

We evaluated the association between mild cognitive impairment (MCI) subtypes and quality of life (QoL) in 219 newly diagnosed Parkinson's disease (PD) patients without dementia. Participants completed neuropsychological tests of attention, executive function, visuospatial function, memory, and language, and reported QoL using the Parkinson's Disease Questionnaire. Impairments were most common in executive function, memory and attention. MCI subtypes were classified according to Movement Disorder Society Task Force criteria. More severe cognitive impairment was associated with poorer quality of life (p = 0.01), but subtype of impairment was not (p > 0.10), suggesting that the nature of cognitive impairment is less significant than its severity.

Keywords: Parkinson's disease; mild cognitive impairment; quality of life; subtypes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Cognitive Dysfunction / classification
  • Cognitive Dysfunction / complications
  • Cognitive Dysfunction / epidemiology*
  • Cohort Studies
  • Female
  • Humans
  • Male
  • Middle Aged
  • Neuropsychological Tests
  • Parkinson Disease / complications
  • Parkinson Disease / epidemiology*
  • Parkinson Disease / psychology*
  • Quality of Life*