【Objective】 To investigate the prevalence and the feasibility of early diagnosis about autism spectrum disorders (ASD) in Shenzhen city by early screening on infants aged 18~24 months. 【Methods】 3 624 infants were screened by Checklist for Autism in Toddlers (CHAT) scale in Nanshan,Baoan,Longgang district in Shenzhen city,then screening positive infants were measured by transfer treatment,telephone interview,diagnostic evaluation and followed up for 3 years. 【Results】 244 infants were screened as positive subjects among the whole 3 624 infants and the total screening positive rate was 5.77%.There were 10 infants diagnosed as ASD,including 3 PDD-NOS,7 autisms.These infants who were suspected as ASD at the first diagnostic evaluation were still meet the same diagnosis after 3-years followed-up. 【Conclusions】 The ASD prevalence rate in ShenZhen city is lower than that reported on abroad,while is much higher than that in other regions in China.Healthy education should be strengthened to improve the social awareness of the disease and carry out early screening,early diagnosis and early intervention by the child healthcare system,which help to reduce the burden of the families and society.
Key words
autism spectrum disorders /
early screening /
follow up study
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