Navigation Links
Autism Speaks responds to recent publications citing autism clusters in California
Date:1/22/2010

NEW YORK, N.Y. (January 21, 2010) Two recent, separate publications identified regions with higher than expected numbers of autism cases or clusters in California. Using data collected by the California Department of Developmental Services (DDS) on 2.5 million births including almost 10,000 autism cases from 1996-2000, investigators at UC Davis uncovered several clusters of elevated risk for autism. Autism Speaks, the nation's largest autism science and advocacy organization, reviewed these studies and found that the majority of these clusters were found to be strongly associated with higher parental education and, to a lesser extent, with parents of older ages. It is thought that parents with higher levels of education may have better access to the regional diagnostic and service centers in California, as the DDS relies on parents actively seeking services. Thus the distribution of cases is likely influenced by proximity to specialty research and service centers.

However, demographic factors, alone, may not explain the increased numbers of cases in these clusters. The authors propose that other factors, including environmental exposures, may play a role but warrant further investigation to understand their contribution to autism etiology.

"Examination of clusters can help us understand the factors that have led to in increase in autism prevalence over time," said Autism Speaks' Chief Science Officer, Geraldine Dawson, Ph.D.

Similar to the UC Davis study, a second study using data collected by the California DDS, which was conducted by investigators from Columbia University identified a significant cluster of increased risk for autism as well as a set of lower risk clusters in and around Northern Los Angeles. However, rather than looking at incidence of cases by DDS Regional Center catchment area, Mazumdar et. al. examined more than 11,500 autism cases among four million births by place of birth. This approach was used to avoid potential bias caused by parents moving to neighborhoods that improve access to specialty autism services.

"Our paper is different," Columbia University co-author Peter Bearman, Ph.D. said. "It identifies a large and stable primary cluster for autism based on residence at birth that is observed over many years and which crosses over regional center boundaries."

The primary cluster accounted for approximately 3 percent of new autism cases in California each year from 1993-2000. While the primary cluster was found to be in an area of higher socioeconomic status than comparison regions, this factor did not fully account for the increased cases of autism in this region.

"Our findings point strongly to the idea that a local process is associated with the increased risk of autism. Such a local process could be either an environmental factor or a social influence factor, or both," noted Bearman.

Both publications add to the growing body of evidence suggesting that the distribution of autism cases differs across different regions. While the exact causes of the clustering in California are unknown, ongoing studies exploring environmental exposures and social factors will be useful in providing answers.


'/>"/>

Contact: Jane E. Rubinstein
jrubinstein@rubenstein.com
212-843-8287
Autism Speaks
Source:Eurekalert  

Related biology news :

1. Children with autism dont adapt as readily to unfamiliar faces
2. Rutgers Genetics receives $7.8 million for autism research
3. Simons Foundation awards Emory scientists $3M for autism gene research
4. Largest study to investigate risk factors of autism to begin enrolling families
5. New studies on schizophrenia, depression, trauma and autism highlight annual meeting
6. Study finds first-ever genetic animal model of autism
7. New studies suggest brain overgrowth in 1-year-olds linked to development of autism
8. Recurrent genetic deletion linked to autism
9. Researchers move 2 steps closer to understanding genetic underpinnings of autism
10. Autism Speaks collaborates on grant with the Allen Institute for Brain Science and autism expert
11. Kids with autism may have gene that causes muscle weakness
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Autism Speaks responds to recent publications citing autism clusters in California
(Date:4/28/2016)... and BANGALORE, India , April ... EdgeVerve Systems, a product subsidiary of Infosys (NYSE: ... today announced a global partnership that will provide ... to use mobile banking and payment services.      ... a key innovation area for financial services, but it also ...
(Date:4/15/2016)...  A new partnership announced today will help ... in a fraction of the time it takes ... life insurance policies to consumers without requiring inconvenient ... Diagnostics, rapid testing (A1C, Cotinine and HIV) and ... weight, pulse, BMI, and activity data) available at ...
(Date:3/31/2016)... , March 31, 2016  Genomics firm Nabsys has ... CEO, Barrett Bready , M.D., who returned to ... the original technical leadership team, including Chief Technology Officer, ... Product Development, Steve Nurnberg and Vice President of Software ... the company. Dr. Bready served as CEO ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... ... innovative medical technologies, services and solutions to the healthcare market. The company's primary ... various distribution, manufacturing, sales and marketing strategies that are necessary to help companies ...
(Date:6/24/2016)... 24, 2016  Regular discussions on a range of subjects ... the two entities said Poloz. Speaking at a ... , he pointed to the country,s inflation target, which ... "In certain areas ... have common economic goals, why not sit down and address ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... its second eBook, “Clinical Trials Patient Recruitment and Retention Tips.” Partnering with experienced ... this eBook by providing practical tips, tools, and strategies for clinical researchers. , ...
(Date:6/23/2016)... June 23, 2016 A person commits a crime, ... scene to track the criminal down. An outbreak ... and Drug Administration (FDA) uses DNA evidence to track down ... Sound far-fetched? It,s not. The FDA has increasingly used ... investigations of foodborne illnesses. Put as simply as possible, whole ...
Breaking Biology Technology: