关键词: 孤独谱系障碍, 儿童系统保健, 早期筛查模式

Abstract: Objective To know the prevalence of the autism spectrum disorders (ASD) in one city,find effective pattern of early screening,realizing early finding and early treating. Methods Across sectional study was conducted with 2 090 children aged from 1.5 to 3.0 years old by stratified cluster sampling.Frequentative step-by-step screening was carried out,CHAT-23 and Clancy Autism Behavior Rating Scale (CABRS) were used as first screening tool,The suspicious were diagnosed by child psychiatrist with DSM-V.After half a year,screening and evaluing all children again. Results In the first step screening,448 children were doubtful,and positive rate was 21.44%,then during the next screening finding that 4 children were missed,2 children were misdiagnosed.The prevalence rate of ASD was 1.24%. Conclusion The prevalence rate of autism spectrum disorders in one city is close to that reported on abroad with the diagnostic criteria of DSM-V,while is much higher than that in other regions in China.That points out that the CHAT-23 and CABRS carrying screening is feasible,and the times and step-by-step screening mode should be popularized during the children's health care system,because that may find early patient effectively and decrease missed diagnosis.

Key words: autism spectrum disorders, children&apos, s health care system, pattern of early screening