According to a study from the United States, 'We conducted a case control study using 190 Han children with and without autism to investigate prenatal and perinatal risk factors for autism in China.'
'were recruited through public special education schools and controls from regular public schools in the same region (Tianjin), with frequency matching on sex and birth year. Unadjusted analyses identified seven prenatal and seven perinatal risk factors significantly associated with autism,' wrote X. Zhang and colleagues, University of California.
The researchers concluded: 'In the adjusted analysis, nine risk factors showed significant association with autism: maternal second-hand smoke exposure, maternal chronic or acute medical conditions unrelated to pregnancy, maternal unhappy emotional state, gestational complications, edema, abnormal gestational age (< 35 or > 42 weeks), nuchal cord, gravidity > 1, and advanced paternal age at delivery (> 30 year-old).'
Zhang and colleagues published the results of their research in the Journal of Autism and Developmental Disorders (Prenatal and Perinatal Risk Factors for Autism in China. Journal of Autism and Developmental Disorders, 2010;40(11):1311-1321).
For additional information, contact L.H. Qi, University of California, Dept. of Public Health Science, School Medical, Davis, CA 95616, USA.
The publisher of the Journal of Autism and Developmental Disorders can be contacted at: Springer, Plenum Publishers, 233 Spring St., New York, NY 10013, USA.
Keywords: City:Davis, State:CA, Country:United States, Autism, Developmental Disabilities, Developmental Disorders, Neurology, Special Education
This article was prepared by Education Letter editors from staff and other reports. Copyright 2010, Education Letter via VerticalNews.com.
