TABLE 3.

Receiver operating characteristic curve values of affected IBS and control patients

Location	Cutoff values	Sensitivity, %	Specificity, %	Area under the curve	95% CI	P value
Stomach	>20.5	74.1	75.9	0.84	0.74–0.94	<0.001
Duodenum	>23.0	72.9	71.8	0.79	0.69–0.89	<0.001
Terminal ileum	>33.5	72.7	91.7	0.82	0.69–0.95	<0.001
Descending colon	>22.5	79.1	79.3	0.86	0.75–0.96	<0.001

IBS = irritable bowel syndrome.