Anxiety disorders are independently associated with physical conditions including thyroid disease, respiratory disease, arthritis and migraine headaches, research has shown.
The German study explored the association between anxiety disorders and physical conditions in 4,181 patients between 1997 and 1999.
Psychologists and physicians conducted psychiatric interviews with the patients, who were part of the German Health Survey, looking for anxiety disorders and found 8.4% had one.
Anxiety disorders were associated with any type of physical condition within the past month - and individuals with both anxiety and a physical disorder developed anxiety first and tended to have a poorer quality of life than those with anxiety disorders and physical conditions alone.
Archives of Internal Medicine (2006) 166:2109-2116