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Table 3 Factors associated with eradication failure in amoxicillin- and tetracycline containing quadruple therapy

From: Comparison of sequential therapy and amoxicillin/tetracycline containing bismuth quadruple therapy for the first-line eradication of Helicobacter pylori: a prospective, multi-center, randomized clinical trial

Factors Crude Univariated Adjusted Multivariated
OR (95 % CI) p-valuea OR (95 % CI)b p-valuec
Age ≥ 50 (y) 1.12 (0.54–2.32) 0.763   
Female 0.38 (0.31–1.30) <0.0001 0.27 (0.34–1.51) <0.0001
Cigarette smoking 1.35 (0.57–3.20) 0.499   
Alcohol drinking 1.42 (0.70–2.88) 0.325   
BMI ≥ 25 (kg/m2) 2.28 (1.12–4.63) 0.023 2.16 (1.05–4.43) 0.037
  1. OR odds ratio, CI confidence intervals, BMI body mass index
  2. aUnivariate logistic regression
  3. bAdjusted for gender and BMI
  4. cMultivariate logistic regression