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

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