About 15% of the world's population lives with some form of disability, of whom 2-4% experience significant difficulties in functioning. The global disability prevalence is higher than previous WHO estimates, which date from the 1970s and suggested a figure of around 10%. This global estimate for disability is on the rise due to population ageing and the rapid spread of chronic diseases, as well as improvements in the methodologies used to measure disability.

In 2010, the Australian Government commissioned another report on services and supports for autistic children and their families.

The report is in two parts but is presented in a single document:

Key findings 

This review has produced an estimate of the annual economic costs of Autism Spectrum Disorder (ASD) in Australia, updating a previous study completed in April 2007. 

This review has produced an updated estimate of the annual economic costs of ASD in Australia, including the burden of disease, of between $8.1 billion (low prevalence) and $11.2 billion (high prevalence), with a mid-point of $9.7 billion (all estimates are in December 2010 dollars). 

The foreword to this report says "the value of informal care has increased to exceed $40 billion per annum in 2010, 33% higher than in 2005". It says this is based on $31 per hour replacement costs. Probably, some of the value is estimated based on conjugate/centre-based care - so better care would be more expensive.

This report is not autism/ASD specific ... but is contains valuable and relevant material.

When girls with symptoms of autism or ADHD seek professional medical help, their problems are often played down or misinterpreted, and there is a real risk that they will not get the help or support they need. As such, more training is needed in this area, particularly in the public sector, reveals a thesis from the University of Gothenburg.

The presentation below was given at APAC'09 in Sydney. Among other things, it shows the growing number of children whose family get's Carer Allowance (that is, children who have been formally diagnosed with Autistic or Asperger's Disorders and also registered to receive Carer Allowance).

Previously, a paper on autism prevalence in Australia was published in the peer reviewed proceedings of the 2004 Biennial Australian Autism conference (see http://a4.org.au/sites/default/files/buckley_submit2.pdf).