Abstract
Early autism screening is of great value, but there is lack of a screening tool of early age (2-5years) in China. The Autism Spectrum Rating Scale (ASRS, 2-5years) is a newly developed autism screening tool in the USA. This study aimed to evaluate the reliability and validity of the translated Chinese version of ASRS (C_ASRS) in Chinese children population before its application in China for early autism screening. Caregivers of general children aged 2-5years from 17 kindergartens and autism spectrum disorder (ASD) cases from five special education schools in five cities were recruited to complete the C_ASRS. 1910 valid questionnaires from kindergarteners and 192 from ASD cases were included for analyses. The item reliability (Cronbach's alpha) was more than 0.80 in the screening scale and DSM-5 scale, and 0.51-0.81 in the treatment scale. ASD cases scored higher on total score and most subscales compared to the kindergarteners (Cohen's d ranging from 1.34 to 3.37). C_ASRS showed good discriminatory validity with an area under the receiver operating characteristic curve of 0.850 (95% confidence interval: 0.819-0.881). The cutoff ≥ 60 achieved sensitivity of 65.63% and specificity of 85.63% in discriminating autism children from the general population. The results indicate that C_ASRS (2-5years) could be used as an early level-2 screening tool for autism screening in China and should be further revised for level-1 screening.
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