Survival Study of Parkinson Disease in Olmsted County, Minnesota
Open Access
- 1 January 2003
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Neurology
- Vol. 60 (1), 91-96
- https://doi.org/10.1001/archneur.60.1.91
Abstract
SINCE THE 1967 report by Hoehn and Yahr,1 several studies have examined survival in patients with parkinsonism or Parkinson disease (PD).2,3 Most of these studies reported an increased risk of death in patients with parkinsonism or PD. In addition, it has been suggested that some prognostic factors (eg, dementia, severity of extrapyramidal signs, or gait disturbance) may modify survival.4,5 Whether sex and age at onset of the disease are prognostic factors remains debated.2,6,7Keywords
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