Abstract
The number of epidemiological studies of autism has increased in recent years, including in the United States, where investigators are now catching up in what has traditionally been a weak area of child psychiatric research in North America. In this issue of THE JOURNAL, Yeargin-Allsopp et al1 report the findings of a survey, which was funded by the Centers for Disease Control and Prevention, that found a rate of 34 per 10 000 for autism spectrum disorders (ASDs) among 3- to 10-year-old children in metropolitan Atlanta.