The effect of age of onset of PD on risk of dementia

  title={The effect of age of onset of PD on risk of dementia},
  author={Dag Aarsland and Jan Terje Kval\oy and Kjeld Andersen and Jan P. Larsen and M. X. Tang and Annette Lolk and Per Kragh-S\orensen and Karen S. Marder},
  journal={Journal of Neurology},
Dementia occurs in the majority of patients with Parkinson’s disease (PD). Late onset of PD has been reported to be associated with a higher risk for dementia. However, age at onset (AAO) and age at baseline assessment are often correlated. The aim of this study was to explore whether AAO of PD symptoms is a risk factor for dementia independent of the general effect of age. Two community-based studies of PD in New York (n = 281) and Rogaland county, Norway (n = 227) and two population-based… CONTINUE READING


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