Fewer people with Down syndrome live in the US than previously thought

This blog post was originally published in January 2009, and remains one of the most visited, according to Google's statistics (possibly by students looking for statistics for assignments).

We have updated the from time to time, and have now added a link to the most recent revision of estimates of the number of people living with Down syndrome in the US. It is now thought that previous estimates were 25 - 40% too high, and did not account for all the factors that determine population numbers.

• For all posts on this blog about statistics in NSW, Australia and internationally, click here