Incidence and prevalence of Tourette syndrome and chronic tic disorders in Taiwan: a nationwide population-based study

ConclusionThe annual incidence rates of TS and chronic tic disorders increased in childhood and adolescence but decreased in adulthood from 2007 to 2015. The prevalence rates increased over the same period.
Source: Social Psychiatry and Psychiatric Epidemiology - Category: Psychiatry Source Type: research