Evaluation of the string test for the detection of Helicobacter pylori

Table 1 Results of the 4 tests in detecting Helicobacter pylori

Helicobacter pylori status	CLO test	Histology	Antral biopsy culture	String test culture	Number of patients (n = 30)
+	+	+	+	+	8*
+	+	+	+	-	9
+	+	+	-	-	4
-	-	+	-	-	1
-	-	-	-	-	8

+ denotes positive test; - denotes negative test. * one patient with a positive CLO test but the antral histopathology was not performed. He was counted as a positive case for this study.