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Kamio, Yoko; Inada, Naoko; Koyama, Tomonori; Inokuchi, Eiko; Tsuchiya, Kenji; Kuroda, Miho – Journal of Autism and Developmental Disorders, 2014
To determine whether the Modified Checklist for Autism in Toddlers (M-CHAT) in conjunction with the routine 18-month health check-up identifies Japanese toddlers with autism spectrum disorder (ASD). Two-stage screening using the M-CHAT was conducted with 1,851 children attending the check-up. Final ASD diagnosis was confirmed at age =3 years.…
Descriptors: Foreign Countries, Autism, Pervasive Developmental Disorders, Toddlers
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Koyama, Tomonori; Kamio, Yoko; Inada, Naoko; Inokuchi, Eiko – Research in Autism Spectrum Disorders, 2011
Difficulties in social communication are not necessarily observed only in individuals with autism spectrum disorders (ASD), and there are many subclinical cases in the general populations. Although advanced parental age at childbirth has often been considered a possible risk factor of ASD, it might contribute to poor social functioning in…
Descriptors: Age Differences, Pregnancy, Social Development, Interpersonal Competence