Study	Reason for exclusion
Altamura 2003	No randomisation (we contacted the authors because the article included no information about randomisation)
Ballbe 1970	People with hysteria and anxiety neurosis (focus on conversion symptoms)
Bratfos 1967	People with neurosis
Cui 2004	People with hysteria
Davis 1988	People with a specific functional syndromes (non‐ulcer dyspepsia)
Farnbach 2013	Efficacy of quetiapine fumarate as a adjunctive therapy to current pain treatment of participants was examined
Fukuda 1971	People with psychosomatic symptoms (primary diagnoses: depression, anxiety, somatic disorders)
Hasegawa 1977	People psychosomatic disease and neurosis
Holdevici 1995	People with symptoms of anxious neurosis and somatoform disorders, no information provided how participants were diagnosed and how long participants' symptoms had to persist
Kozian 2003	Case report
Lee 2012	Anti‐stress effect of Korean red ginseng in a general population with various stress‐related somatic symptoms was examined
Liu 2011	People fulfilling CCMD‐III criteria of a depressive disorder with a co‐morbid somatic diagnosis were included
Loldrup 1989	45.1% of the participants had tension headache (not classified as somatoform disorder)
Onghena 1993	Cross‐over design applied but no data for the first study phase available
Pach 1976	People with functional physical symptoms in combination with anxious, depressive mood; functional physical symptoms included predominantly different heart sensations, circulation problems or tension headache
Poinso 1988	People with reactive depression
Raich 1966	Anxious somatising neurotic medical clinic participants; no information provided how participants were diagnosed and how long participants' symptoms had to persisted
Smith 1971	People with psychoneurotic anxiety with/without depressive symptoms
Smouvelich 1996	People with cardioneurotic disease with an anxiety disorder (agoraphobia, generalised anxiety disorder, panic disorder) and a somatoform disorder (somatisation disorder, hypochondriasis)
Tanum 1996	People with specific functional syndromes (irritable bowel syndrome, non‐ulcer dyspepsia)
Tsutsui 1984	People with a disorder in the field of internal medicine (psychosomatic medicine), geriatric medicine (focus on various sleeping problems with the frequency of symptoms of ≥ 4 times/week)
Tsutsui 1985	People with a disorder in the field of internal medicine (psychosomatic medicine), geriatric medicine (focus on various sleeping problems with the frequency of symptoms of ≥ 4 times/week)
Tsutsui 1986	People with a disorder in the field of internal medicine (psychosomatic medicine), geriatric medicine (focus on various sleeping problems with the frequency of symptoms of 4 times or more per week)
Tsutsui 1987	People with a disorder in the field of internal medicine (psychosomatic medicine), geriatric medicine (focus on various sleeping problems with the frequency of symptoms of ≥ 4 times/week)
Tsutsui 1992	People with a disorder in the field of internal medicine (psychosomatic medicine) and geriatric medicine (focus on insomnia)
Turkington 2002	People with 1 specific functional syndrome (prostatodynia)
Xu 2006	Interventions: paroxetine vs. acupuncture (no placebo or other medication group)
Zang 1991	People fulfilling diagnostic criteria of neurosis defined by the Chinese Neuropsychiatric Committee in October 1985 (these criteria do not correspond to the inclusion criteria of the review regarding the diagnosis)
Zhao 1989	People with neurosis (included anxiety, phobia, somatisation, and compulsion) and depression
Zitman 1990	People with chronic pain of various origins (only 35.9% fulfilled criteria of psychogenic pain disorder)

CCMD: Chinese Classification of Mental Disorders.