egoldber
12-22-2009, 11:13 AM
This study came out a few days ago. I meant to post about it and kept forgetting. Found it again going through my e-mail....
http://www.cdc.gov/mmwr/preview/mmwrhtml/ss5810a1.htm
Here is a summary:
In 2006, on average, approximately 1% or one child in every 110 in the 11 ADDM sites was classified as having an ASD (approximate range: 1:80--1:240 children [males: 1:70; females: 1:315]). The average prevalence of ASDs identified among children aged 8 years increased 57% in 10 sites from the 2002 to the 2006 ADDM surveillance year. Although improved ascertainment accounts for some of the prevalence increases documented in the ADDM sites, a true increase in the risk for children to develop ASD symptoms cannot be ruled out. On average, although delays in identification persisted, ASDs were being diagnosed by community professionals at earlier ages in 2006 than in 2002.
I believe the previous estimate was about 1 in 150 children and 1 in 100 boys. Now it is 1 in 110 children (1 in 70 boys and 1 in 315 girls) will be diagnosed with an autism spectrum disorder by the age of 8.
http://www.cdc.gov/mmwr/preview/mmwrhtml/ss5810a1.htm
Here is a summary:
In 2006, on average, approximately 1% or one child in every 110 in the 11 ADDM sites was classified as having an ASD (approximate range: 1:80--1:240 children [males: 1:70; females: 1:315]). The average prevalence of ASDs identified among children aged 8 years increased 57% in 10 sites from the 2002 to the 2006 ADDM surveillance year. Although improved ascertainment accounts for some of the prevalence increases documented in the ADDM sites, a true increase in the risk for children to develop ASD symptoms cannot be ruled out. On average, although delays in identification persisted, ASDs were being diagnosed by community professionals at earlier ages in 2006 than in 2002.
I believe the previous estimate was about 1 in 150 children and 1 in 100 boys. Now it is 1 in 110 children (1 in 70 boys and 1 in 315 girls) will be diagnosed with an autism spectrum disorder by the age of 8.