Table 4 Multivariable logistic modelling of determinants of anaemia, stratified by sex*.

From: Sero-prevalence of Helicobacter pylori CagA immunoglobulin G antibody, serum pepsinogens and haemoglobin levels in adults

 

Adjusted OR (95% CI)*

P

Men**

Age, years

 

<0.001 (2df)

25–44

Reference

 

45–64

1.21 (0.53, 2.81)

0.6

65–78

4.63 (2.12, 10.09)

<0.001

Population group: Arabs vs Jews

2.17 (1.13, 4.16)

0.019

Atrophic gastritis (PGI <30 µg/L or PGI: PGII ratio <3) (yes vs no)

1.52 (0.59, 3.95)

0.3

H. pylori IgG positive CagA IgG positive vs the rest

0.89 (0.46, 1.72)

0.7

Regular smoking ≥1 cigarette/ day vs other

0.20 (0.08, 0.53)

0.001

Education:

 

0.11 (2df)

Some high school or less

0.67 (0.31,1.45)

0.3

High school certificate/some college

1.38 (0.63–3.04)

0.4

Academic education

Reference

 

Women**

Age, years

 

0.021 (2df)

25–44

Reference

 

45–64

0.55 (0.36, 0.85)

0.007

65–78

0.60 (0.36, 1.01)

0.056

Population group: Arabs vs Jews

2.15 (1.36, 3.38)

0.034

Atrophic gastritis (PGI <30 µg/L or PGI: PGII ratio <3) (yes vs no)

2.58 (1.48, 4.48)

0.001

H. pylori IgG positive CagA IgG positive vs the rest

1.40 (0.94, 2.07)

0.09

Regular smoking ≥1 cigarette/ day vs other

0.89 (0.47, 1.69)

0.7

Education:

 

0.5 (2df)

Some high school or less

1.31 (0.74, 2.34)

0.3

High school certificate/some college

1.06 (0.56, 1.99)

0.8

Academic education

Reference

 
  1. *CagA: cytotoxin associated gene A; CI: confidence intervals; df: degrees of freedom; OR: odd ratio; PG: pepsinogen.
  2. Adjusted for the variables included in the table.
  3. **For men Nagelkerke R Square = 0.157, P = 0.9 by Hosmer and Lemeshow Test.
  4. **For women Nagelkerke R Square = 0.091, P = 0.48 by Hosmer and Lemeshow Test.