Table 3: Prevalence of antibiotic resistance of H. pylori isolates.

Resistant breakpoint of MIC (μg/mL)No. of resistant strains/Total strainsResistance rate (%)

Clarithromycin>122/3171.1
Metronidazole>821/3167.7
Levofloxacin>113/3141.9
Amoxicillin>0.57/3122.6
Tetracycline>41/313.2
Rifabutin>0.250/310
Furazolidone>40/310

MIC, minimum inhibitory concentration.