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Table 2 Multivariate analysis of factors affecting H. pylori eradication therapy

From: Prevalence and risk factors of Helicobacter pylori infection in Korea: Nationwide multicenter study over 13 years

  Total Subjects with history of H. pylori eradication Odds ratio 95% CI
n %
Total   19,272 3,712 19.3    
Sex Male 10,557 2,246 21.3 Ref   
  Female 8,715 1,466 16.8 0.77 0.71 0.84
Age (years) 16-19 34 1 2.9 2.27 0.28 18.21
20-29 798 21 2.6 Ref   
30-39 2,853 246 8.6 4.22 2.44 7.31
40-49 5,087 889 17.5 9.32 5.44 15.94
50-59 6,176 1,467 23.8 14.33 8.39 24.48
60-69 3,358 865 25.8 16.91 9.87 28.97
≥70 966 223 23.1 16.73 9.58 29.20
Geographic area Seoul 10,755 2,240 20.8 Ref   
Gyeonggi 3,025 622 20.6 0.97 0.87 1.08
Chungcheong 863 123 14.3 0.76 0.61 0.94
Kyungsang 1,630 317 19.4 0.85 0.74 0.99
Cholla 1,807 254 14.1 0.68 0.58 0.80
Kangwon 588 122 20.7 1.30 1.04 1.64
Jeju 589 34 5.8 0.27 0.19 0.39
Household income* Low 2,114 276 13.1 0.70 0.58 0.83
Medium 11,049 2,206 20.0 0.96 0.87 1.05
High 3,781 871 23.0 Ref   
Education level** Low 1,743 285 16.4 0.70 0.59 0.84
Medium 3,667 663 18.1 0.87 0.78 0.97
High 12,928 2,678 20.7 Ref   
GI symptoms No 13,121 2,325 17.7 Ref   
Yes 5,954 1,386 23.3 1.60 1.47 1.73
Family history of gastric cancer No 16,470 3,052 18.5 Ref   
Yes 2,556 646 25.3 1.34 1.21 1.49
  1. *, **, GI, same as those of Table 1.
  2. CI confidence Interval, Ref reference.
  3. Total subject number of multivariable logistic regression was 16,770.