Table 4

Final full multiple linear regression models of dioxin-like mono-ortho PCBs *.

Maternal sera (n = 760)

MDI

PDI

Variables

Beta

SE

p value

Beta

SE

p value

Dioxin-like mono-ortho PCBs (natural log transformed: ng/mg lipids)

-1.60

0.45

< 0.001

-1.26

0.53

0.02

District: Michalovce vs. Svidnik

-4.12

1.01

< 0.0001

-17.22

1.19

<0.0001

HOME score

1.23

0.10

< 0.0001

0.80

0.12

< 0.0001

Raven score

0.24

0.04

< 0.0001

0.25

0.04

< 0.0001

SEX: male vs. female

3.27

0.78

< 0.0001

3.40

0.92

0.0002

Cord sera (n = 258)

MDI

PDI

Variables

Beta

SE

p value

Beta

SE

p value

Dioxin-like mono-ortho PCBs (natural log transformed: ng/mg lipids)

-1.40

0.72

0.05

-1.99

0.87

0.02

District: Michalovce vs. Svidnik

-4.15

1.77

0.02

-15.0

2.13

< 0.0001

HOME score

1.12

0.16

< 0.0001

0.64

0.19

<0.001

Raven score

0.20

0.06

0.001

0.38

0.08

< 0.0001

SEX: male vs. female

4.04

1.77

0.02

3.51

1.61

0.03

* This final model provides an estimate of the effect of dioxin-like mono-ortho PCBs in maternal and cord sera on the Bayley scales (MDI and PDI), adjusting for district, HOME score, sex, maternal Raven's score.

Park et al. Environmental Health 2010 9:51   doi:10.1186/1476-069X-9-51