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University of Basel

08 April 2015

Mental Disorders and Physical Diseases Co-occur in Teenagers

Every third teenager has suffered from one mental disorder and one physical disease. These co-occurrences come in specific associations: More often than average, depression occurs together with diseases of the digestive system, eating disorders with seizures and anxiety disorders together with arthritis, heart disease as well as diseases of the digestives system. These findings were reported by researchers from the University of Basel and the Ruhr-Universität Bochum. Their results based on data from 6,500 U.S. teenagers have been published in the scientific journal “Psychosomatic Medicine”.

According to the WHO, chronic physical disease and mental disorders are challenging the health care systems and have advanced into the focus of public health authorities worldwide in recent years. Previous adult studies suggest that physical disease and mental disorders not only randomly but also systematically co-occur.

A research team led by PD Dr. Marion Tegethoff from the Faculty of Psychology at the University of Basel now analyzed how often and in what manner these associations already occur in children and adolescents. The study is part of a research project funded by the Swiss National Science Foundation.  For the study, the researchers analyzed data from a national representative cohort of 6,482 U.S. teenagers aged 13 to 18.

Depression comes with indigestion

The researchers found that more than a third (35.3%) of children and adolescents reported at least one mental disorder and one chronic physical disease. The strongest correlation was found between affective disorders (e.g. depression) and diseases of the digestive system. Adolescents with anxiety disorders were also suffering above-average from arthritis, heart disease and diseases of the digestive system.  Similar correlations occurred between eating disorders and seizures (epilepsy). Factors such as age, gender or socioeconomic status of the adolescents did not account for these associations.

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