Table 4

Primary and secondary antibiotic resistance rates

CharacteristicsPrimary resistance before first-line treatment (7 days)Secondary resistance before second-line treatment (10 days)
Group A LAL n=217Group B CAL n=215p ValueGroup A CAL n=40Group B LAL n=26p Value
Clarithromycin11/133 (8.3%)9/133 (6.8%)0.6425/17 (29.4%)10/12 (83.3%)0.004*
Levofloxacin11/141 (7.8%)5/139 (3.6%)0.1307/16 (43.8%)1/12 (8.3%)0.040*
Amoxicillin4/140 (2.9%)3/139 (2.2%)1.000*1/17 (5.9%)1/12 (8.3%)1.000*
  • χ2 test and *Fisher exact test were used as appropriate.

  • CAL, clarithromycin, amoxicillin and lansoprazole; LAL, levofloxacin, amoxicillin and lansoprazole.