Small Intestinal Bacterial Overgrowth in Patients with Irritable Bowel Syndrome: Clinical Characteristics, Psychological Factors, and Peripheral Cytokines

Table 4

Hospital anxiety and depression scale and life event stress scores in patients with irritable bowel syndrome with and without small intestinal bacterial overgrowth (SIBO).

	SIBO (+); ()	SIBO (−); ()	Healthy controls; ()
Anxiety (mean ± SD)	5.37 ± 3.61	5.04 ± 2.85	2.77 ± 1.64
Depression (mean ± SD)	5.86 ± 3.90	5.30 ± 2.87	3.54 ± 2.50
Life event stress	42.0 (11.0–99.0)	39.50 (0.0–69.25)	8.0 (0.0–35.0)

p < 0.05 compared with healthy controls.