Neurological Diseases

European Journal of Epidemiology

, Volume 20, Issue 11, pp 925-927

First online:

Epidemiological Survey of Tourette Syndrome in Children and Adolescents in Wenzhou of P.R. China

  • Rong JinAffiliated withDepartment of Epidemiology, The First Affiliated Hospital of Wenzhou Medical College Email author 
  • , Rong-yuan ZhengAffiliated withDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical College
  • , Wen-wu HuangAffiliated withThe Psychiatric Hospital of Wenzhou
  • , Hui-qin XuAffiliated withDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical College
  • , Bei ShaoAffiliated withDepartment of Neurology, The First Affiliated Hospital of Wenzhou Medical College
  • , Hong ChenAffiliated withDepartment of Psychiatry, The First Affiliated Hospital of Wenzhou Medical College
  • , Liang FengAffiliated withDepartment of Epidemiology, The First Affiliated Hospital of Wenzhou Medical College

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Abstract

An epidemiological survey on Tourette syndrome (TS) in a developing country is relatively scarce. This study was conducted to investigate the prevalence and distribution of TS in children and juveniles aged 7–16 years in Wenzhou of P.R. China. A total of 9742 children and adolescents were included in this survey. Cross-sectional study with stratified-cluster sampling method was used. The prevalence of TS among school-age children was estimated to be an average of 0.43%. The ratio of␣male to female was 10.6 to 1 (0.74% for males and 0.07% for females). Pupils in the age range of 7–16 years are more likely to have comorbid disorders. The mean age at onset of TS was 7.7±2.7 years, with 45.2% of them at the age of 6–7. The rate of delayed diagnosis, misdiagnosis and misclassification of the syndrome were 78.6, 42.9 and 23.8%, respectively. This survey supports that TS is a common disease prevalent amongst children and juveniles in Wenzhou area of P.R. China, and its incidence was correlated with age and sex and often misdiagnosed and misclassified.

Keywords

Children and adolescents Epidemiology Tourette syndrome