MedPage Today (8/7, George ) says, “Dementia in Parkinson’s disease occurred less frequently or later in the disease course than previously reported, data from two ongoing prospective cohorts showed.” The study “assessed longitudinal information from the international Parkinson’s Progression Markers Initiative (PPMI) cohort and a long-standing Parkinson’s research cohort at Penn,” which combined to reveal “the estimated risk of dementia by duration of Parkinson’s disease was” 3-12% at year five, rising to 74% at year 20. The findings were published in Neurology.
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