Neuropsychiatric Symptoms Are Associated with Dementia in Parkinson's Disease but Not Predictive of it.
Kyla-Louise HorneMichael R MacAskillDaniel J MyallLeslie LivingstonSophie GrenfellMaddie J PascoeBob YoungReza ShoorangizTracy R MelzerToni L PitcherTim J AndersonJohn C Dalrymple-AlfordPublished in: Movement disorders clinical practice (2021)
Cognitive ability and age strongly out-performed neuropsychiatric measures as markers of developing PDD within 4 years. Therefore, neuropsychiatric symptoms do not appear to be useful markers of PDD risk.