Table 1 Prevalence of Parkinson’s disease by study, year, and sex

From: Prevalence of Parkinson’s disease across North America

Study Year Population Number of cases Age-standardized rate a (95% CI)
Females, 45+ years
CPDR-PP 2010 693,990 3204 462 (456–468)
KPNC 2010 654,545 4081 623 (617–631)
Ontario 2010 2,892,521 12,972 448 (446–451)
REP 2006 26,394 109 413 (385–442)
Males, 45+ years
CPDR-PP 2010 644,807 3728 578 (571–585)
KPNC 2010 560,338 4484 800 (791–809)
Ontario 2010 2,633,266 15,093 573 (570–577)
REP 2006 22,881 186 813 (769–859)
HAAS 1965–2012 8006 207 380 (308–464)
  1. REP Rochester Epidemiology Project, CPDR-PP California Parkinson’s disease Registry-Pilot Project, KPNC Kaiser Permanente Northern California, HAAS Honolulu-Asia Aging Study
  2. aStandardized to US 2010 population based on 5-year age groups