Table 6 Unadjusted and adjusted odds ratios of H. pylori infection status with various factors

Age (mean ± SD, years)

1.00 (0.98–1.01)

–

 Males

1

–

 Females

0.80 (0.50–1.29)

–

 Non married

1

–

 Married

0.93 (0.57–1.53)

–

 Below high school

1

1

 High school

1.57 (0.77–3.17)

2.17 (0.84–5.60)

 University and higher

1.49 (0.81–2.76)

2.74 (1.17–6.44)

 <  660 USD

1

–

 ≥ 660 USD

0.80 (0.50–1.27)

–

 Normal (≤1.2 g/L)

1

1

 Above normal (> 1.2 g/L)

0.26 (0.08–0.83)

0.18 (0.03–0.89)

 Normal (≥20 nanog/L)

1

1

 Below normal (< 20 nanog/L)

24.57 (10.78–56.03)

29.14 (11.77–72.13)

 None/Less than once per month

1

–

 1–2 times per month

2.23 (1.21–4.10)

–

 Once or more per week

1.40 (0.79–2.49)

–

 No

1

1

 Yes

4.20 (2.23–7.90)

3.80 (1.80–8.01)

 No

1

1

 Yes

0.19 (0.04–0.92)

0.18 (0.02–1.43)

 No

1

1

 Yes

3.58 (1.40–9.15)

3.99 (1.35–11.83)