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Table 1 IBS Patients with co-existing Mental illness studies

From: The role of serotonin and diet in the prevalence of irritable bowel syndrome: a systematic review

Study

Number of Patients

Percentage of participants with psychological illness

Blanchard et al (2007)

210

66.6% (DSM-IV Axis

type-1 disorder)

Kennedy et al (2005)

149

43% (Any psychological disorder in the past year)

Payne and Blanchard (1995)

34

85% (DSM-IV Axis

type-1 disorder)

Tkachuk et al (2003)

28

68% (DSM-IV Axis type-1 disorder)

  1. Deficiency of serotonin is common in IBS and as well as in many mental disorders. Many studies were done to study the existence of mental illness in IBS patients, here are enlisted some of the studies with the percentage of IBS patients with psychological illness [31]