A study by Arizona State University found strong correlation of gastrointestinal symptoms with autism severity. Their results indicate that children with more severe autism are likely to have more severe gastrointestinal symptoms and vice versa. The results of this research confirm once more the widespread abnormalities of gastrointestinal function in autism and the likelihood of GI problems in autism being a contributing factor to the severity of the disorder. Access full paper http://www.biomedcentral.com/1471-230X/11/22/abstract