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Table 1 Psychiatric state assessment of the IBS patients [17]

From: Anxiety-depressive disorders among irritable bowel syndrome patients in Guilan, Iran

Normal Patients with a GHQ28 score < 23.
Depression The presence of at least one of the following disorders: major depressive disorder (MDD), minor depressive disorder or dysthymic disorder.
Anxiety The presence of at least one of the following disorders: phobia, panic attacks, generalized anxiety disorder (GAD), obsessive-compulsive disorder (OCD) or post-traumatic stress disorder (PTSD).
Co-morbid Having both anxiety and depression criteria simultaneously.