Results: A total of 34 RCTs
involving 3922 patients were included. Two thirds of the studies involved somatization disorder (n 4 studies) and lower threshold
variants, such as abridged somatization disorder (n 9) and medically unexplained symptoms (n 10). Cognitive behavioral
therapy (CBT) was effective in most studies (11 of 13), as were antidepressants in a small number (4 of 5) of studies