Table 1.
Antibiotic susceptibility test for Helicobacter pylori identified from clinical specimens.
| No. of Total Clinical Specimens | 1952 | ||
|---|---|---|---|
| No. of H. pylori Identified by MALDI-TOF-MS | 368 | ||
| AST Results Using an E-Test | Antibiotic Type | MIC Breakpoint (mg/L) | No. of Strains |
| Amoxicillin | >0.125 | 31 | |
| Clarithromycin | >0.5 | 101 | |
| Metronidazole | >8 | 68 | |
| Tetracycline | >1 | 20 | |
| Levofloxacin | >1 | 114 |
AST, antimicrobial susceptibility test; MALDI-TOF; matrix-assisted laser desorption/ionization time-of-flight mass spectrometer, E-test; Epsilometer test; MIC, minimum inhibitory concentration; EUCAST, European Committee on Antimicrobial Susceptibility Testing. The MIC breakpoint was determined using EUCAST version 12.0.