Objective To describe the prevalence,distribution and difference of children with autism spectrum disorders (ASD) at the age of 0 to 6 years old in Hainan province. Methods Totally 37 862 children aged 0～6 years were selected from 18 different cities and counties in Hainan province,and were screened by the "Child Development Issues Warning Signs" questionnaire,diagnosed by clinical specialists. Results A total of 235 children were diagnosed with autism spectrum disorders from 37 862 children aged 0 to 6 years,and the ASD prevalence was 0.62%.The difference on ASD prevalence between boys (0.99%) and girls (0.17%) were statistically significant (χ2=101.91,P<0.001).The older children had higher prevalence of ASD with signficant difference (χ2=288.62,P<0.01).Also,the autism rate in urban areas was significantly higher than that in other regions (χ2=114.77,P<0.001). Conclusions The prevalence of ASD in children aged 0~6 in Hainan province is high in the domestic and children are diagnosed with ASD at their older age.So it is urgently needed to improve the early diagnosis rate.
Key words
autism spectrum disorder /
prevalence /
0 to 6-year-old children
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