Table 4.

Comparison of the activated regions of interest (ROIs) between patients with irritable bowel syndrome (IBS) and healthy control participants at different degrees of rectal balloon distention

	Stimulus	40 ml VS 80 ml	40 ml VS 120 ml	80 ml VS 120 ml
IBS	P value	0.377	0.039	0.002
	95%CI	−0.192–0.498	−0.614–0.016	−0.752–0.185
Controls	P value	0.684	0.876	0.549
	95%CI	−0.223–0.149	−0.215–0.250	−0.132–0.240

VS versus, P values < 0.05 indicate statistically significant differences