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Table 2 Independent risk factors of H pylori seropositivity in each group of tested patients (O-87, O-97) (multivariate logistic regression analysis).

From: Helicobacter pylori (H pylori) infection in Greece: the changing prevalence during a ten-year period and its antigenic profile

  O-87    O-97   
Variables Age (years) Odds ratio 95% CI p Odds ratio 95% CI p
15 – 24 1    1   
25 – 34 1.68 (0.63, 4.47) 0.29 3.34 (0.81, 13.73) 0.09
35 – 44 3.28 (1.13, 9.49) 0.02 5.54 (1.41, 21.88) 0.01
45 – 54 6.05 (1.96, 18.65) 0.002 7.12 (1.80, 28.07) 0.005
55 – 64 3.28 (1.19, 9.02) 0.02 13.51 (3.35, 54.51) < 0.001