Global Autism Spectrum Disorder Cases Reach 61.8 Million

A recent systematic review has revealed that the global prevalence of autism spectrum disorder (ASD) has reached approximately 61.8 million individuals in 2021. This study, published in The Lancet Psychiatry, highlights the significant health burden associated with autism on a global scale.

Conducted by researchers at the University of Queensland, the review synthesized data to estimate the prevalence and health implications of autism worldwide. The findings indicate a global age-standardized prevalence rate of 788.3 cases per 100,000 individuals. This statistic translates to approximately 1,064.7 males and 508.1 females diagnosed with autism per 100,000 in their respective populations.

In terms of health impact, autism spectrum disorder was responsible for about 11.5 million disability-adjusted life-years (DALYs), which corresponds to a rate of 147.6 DALYs per 100,000 people. The DALY rates varied by region, with Southeast Asia, East Asia, and Oceania reporting rates between 126.5 and 204.1 per 100,000 individuals. The burden of autism is particularly notable in children under five years of age, with a reported rate of 169.2 DALYs per 100,000.

The study further reveals that children and adolescents under 20 years of age account for a significant portion of the health burden, ranking autism among the top ten causes of nonfatal health conditions in this demographic. The prevalence of autism and its associated health challenges appear to decrease with age, as indicated by the lower DALY rates in older populations.

The authors of the study emphasize the importance of these findings as a basis for future research and policy initiatives. They urge stakeholders to address the unique needs of individuals on the autism spectrum, promoting a more inclusive and understanding society for all.

It is worth noting that several authors involved in the study have disclosed connections to the pharmaceutical industry, which raises considerations regarding potential biases in the findings.

For more detailed insights and findings, refer to the original publication in The Lancet Psychiatry.