Time Trends in the Global Prevalence of Mental Disorders in Children and Adolescents: Gap in Data on U.S. Youth.

There have been numerous reports in the media of alarming increases in the rates of childhood mental health symptoms and conditions in U.S. youth, including severe anxiety.1-3 Calling attention to striking increases in the rates of mental health problems is not required to raise public awareness of their significant impact on childrens' lives. In fact, the evidence base for increasing prevalence of mental disorders, or of any of these conditions in the United States or elsewhere, is quite weak. Published by Elsevier Inc.