Prevalence of Essential Tremor on Arosa Island, Spain: a Community-based, Door-to-Door Survey

Abstract

The prevalence of ET was higher than that seen in similar populations in Spain and other countries. A high proportion of those with ET were previously undiagnosed. Since Arosa Island has been a relatively isolated area, these results might indicate a predominant role, at least in the elderly, for genetic factors in the development of ET.