High age-adjusted prevalence of Parkinson's disease among Inuit in Greenland.

The prevalence of PD among Inuits in Greenland has not been determined. The authors found 40 patients with PD at the prevalence date January 1, 2000. The crude prevalence of PD was estimated to be 81.0 per 100.000 inhabitants born in Greenland. However, owing to the low proportion of 50+ year old Inuits (16.5 vs 33.5% in Denmark) the age-adjusted prevalence was much higher-187.5 per 100,000 persons.