Demographic, Chemical, and Helicobacter pylori Positivity Assessment in Different Types of Gallstones and the Bile in a Random Sample of Cholecystectomied Iranian Patients with Cholelithiasis

Table 1

Performance of the rapid antigen test in bile using the rapid stool antigen test to define H. pylori-positive and H. pylori-negative groups.

Group	Method	TP	TN	FP	FN	Kappa Index	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Accuracy (%)
196	Rapid antigen test in bile	47	135	0	14	0.822	77	100	77	90.6	92.86