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) |