About 2.6 million American children and adolescents had diagnosed anxiety and/or depression in 2011-12, reports an analysis of nationwide data in the Journal of Developmental & Behavioral Pediatrics, the official journal of the Society for Developmental and Behavioral Pediatrics. The journal is published by Wolters Kluwer. The number of children with diagnosed anxiety — but not depression — has increased in recent years, according to the new report, stated lead author was Rebecca H. Bitsko, PhD, of the National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention. The researchers analyzed data from the nationally representative National Survey of Children’s Health for the years 2003, 2007, and 2011-12. In the most recent year, more than 65,000 parents were asked about problems with anxiety and/or depression (diagnosed by a doctor or other healthcare professional) in their children aged six to 17 years. In the 2011-12 survey, 5.3 percent of children and teens had current anxiety or depression. The prevalence of current anxiety increased significantly between surveys: from 3.5 percent in 2007 to 4.1 percent in 2011-12. By comparison, the prevalence of current depression showed no significant change: 2.5 and 2.7 percent, respectively. Children with anxiety and/or depression were more likely to have other diagnosed chronic health conditions as well, including neurobehavioral disorders and obesity. Even after adjustment for other health problems, the presence of anxiety or depression was associated with increased use of healthcare services, more problems at school, and higher levels of aggravation for parents.