Prevalence of Parkinson's disease in the biracial population of Copiah County, Mississippi

Neurology. 1985 Jun;35(6):841-5. doi: 10.1212/wnl.35.6.841.


A door-to-door survey of major neurologic disorders was conducted in the essentially biracial population of Copiah County, MS, using a pretested screening questionnaire. All those suspected of having Parkinson's disease were requested to have a neurologic examination by board-certified neurologists. The study also included those living in institutions. The prevalence of Parkinson's disease (age 40+) was 347 per 100,000 inhabitants. No substantial differences in the age-adjusted prevalence ratios by race or by sex were found in the population studied. Age-specific prevalence ratios for Parkinson's disease increase with advancing age. Over 40% of identified cases were newly diagnosed during the study.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Age Factors
  • Aged
  • Black People*
  • Female
  • Humans
  • Male
  • Mass Screening
  • Middle Aged
  • Mississippi
  • Parkinson Disease / epidemiology*
  • Sex Factors
  • Surveys and Questionnaires
  • White People*