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Table 5 Multiple linear regression models of the association between H. pylor i infection and IQ sores in Arab children, Israel

From: An association between Helicobacter pylori infection and cognitive function in children at early school age: a community-based study

 

Full-Scale IQ

 

Non-verbal IQ

 

Verbal IQ

 
 

β

95%CI

β

95%CI

β

95%CI

High SES village a

      

H. pylori infection

      

Negative

Reference

 

Reference

 

Reference

 

Positive

-6.1**

-11.4, -0.8

-6.0**

-11.1, -0.2

-5.7**

-10.8, -0.6

Maternal education

      

<10 years

-2.4

-9.1, 4.2

-5.4

-12.7, 1.8

0.9

-5.5, 7.2

≥10 years

Reference

 

Reference

 

Reference

 

Current Hb level

3.5**

0.3. 6.7

3.4*

-0.1, 6.9

3.5**

0.5, 6.6

Intermediate SES village b

      

H. pylori infection

      

Negative

Reference

 

Reference

 

Reference

-1.2, 7.1

Positive

1.8

-4.2, 4.5

0.3

-4.8, 5.3

3.0

 

Maternal education

      

<10 years

-5.6**

-11.2, -2.2

-2.7

-8.4, 2.9

-7.9**

-12.5, -3.2

≥10 years

Reference

 

Reference

 

Reference

 

Sex

      

Males

-6.6**

-10.3, -1.2

-8.6**

-13.7, -3.5

-4.3**

-8.5, -0.2

Females

Reference

 

Reference

 

Reference

 

Current Hb level

2.3**

0.4, 4.3

2.4**

0.2, 4.7

1.9**

0.03, 3.7

Low SES village c

      

H. pylori infection

      

Negative

Reference

 

Reference

 

Reference

 

Positive

1.8

-6.6, 10.3

3.2

-4.4, 10.8

0.3

-9.5, 10.2

Maternal education

      

<10 years

-1.4

-9.8, 7.1

0.04

-7.5, 7.6

-2.8

-12.7, 7.0

≥10 years

Reference

 

Reference

 

Reference

 

Crowding index

      

< median

Reference

 

Reference

 

Reference

 

≥ median

-5.4*

-11.8, 0.9

-2.5

-8.2, 3.1

-7.8**

-15.2, -0.4

Hb at early childhood

4.2**

0.2, 8.2

5.2**

1.6, 8.8

3.0

-1.7, 7.7

HAZ at early childhood

4.0**

0.2, 7.8

3.3*

-0.1, 6.8

4.3*

-0.1, 8.8

  1. *P < 0.1, **P < 0.05, Hb: hemoglobin, HAZ: Height for Age Z score.
  2. a The multivariate analysis in the high SES included the variables H. pylori infection, maternal education, maternal age and current hemoglobin levels. b In the intermediate SES village the adjusted model included the variables H. pylori infection, sex, maternal age, maternal education, and current hemoglobin level. The estimates did not changed when the variables "WHZ at early childhood" and "current BMIZ" were entered into the model. c In the low SES village the adjusted model included the variables H. pylori infection, maternal education, crowding index, hemoglobin levels and HAZ at early childhood.
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BMC Pediatrics

ISSN: 1471-2431

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