Table 5. RFLP types of 31 H. pylori isolates determined after culturing and grouped according to patient age.

RFLP types	4–6 n (%)	7–12 n (%)	13–18 n (%)
I	1 (50)	8 (47)	4 (33.3)
II	-	1 (5.9)	2 (16.7)
III	-	6 (35.3)	4 (33.3)
IV	1 (50)	2 (11.8)	2 (16.7)
Total	2	17	12

n: number of H. pylori isolates.