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Table 2 Final multiple linear regression of log transformed B-Pb among children (R square = 0.14)

From: Regular Breakfast and Blood Lead Levels among Preschool Children

Variable

Parameter (beta)Estimate

StandardError

P value

Regular breakfast

-0.10

0.04

0.02

Sex (reference: boy)

-0.11

0.02

<.0001

Age (reference: 3 years)

   

4

0.19

0.03

<.0001

5

0.31

0.03

<.0001

School area (reference: urban area)

   

Suburban

0.02

0.02

0.45

Rural

0.07

0.03

0.02

Mother's education (reference: less than high school)

   

High school

-0.07

0.03

0.01

College & University

-0.01

0.04

0.77

Father's occupation (reference: unemployed)

   

General labor

0.08

0.06

0.15

Technician/Professional

0.13

0.06

0.04

Other

0.04

0.07

0.55

Mother's occupation (reference: unemployed)

   

General labor

-0.05

0.05

0.36

Technician/Professional

-0.10

0.06

0.07

Other

-0.06

0.05

0.28