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Table 4 Results of multiple linear regression analysis of the associations between natural log transformed serum concentrations of groups of PCB congeners differing by the number of ortho- substituted chlorines and the various lipid fractions (n = 575)

From: Analysis of the effects of exposure to polychlorinated biphenyls and chlorinated pesticides on serum lipid levels in residents of Anniston, Alabama

 

Mono-ortho

Di-ortho

Tri-/Tetra-ortho

 

Model 1

Model 2

Model 1

Model 2

Model 1

Model 2

Total lipids

β

0.04

−0.05

0.05

−0.09

0.06

0.12

p-value

0.0005

0.0814

<0.0001

0.0433

<0.0001

<0.0001

SP R22

0.0193

0.0040

0.0245

0.0053

0.0391

0.0209

Total Cholesterol

β

0.03

−0.02

0.03

−0.08

0.04

0.09

p-value

0.0262

0.5254

0.0169

0.0846

0.0013

0.0047

SP R22

0.0081

0.0001

0.0094

0.0044

0.0169

0.0120

HDL cholesterol

β

0.01

0.08

−0.00

−0.05

−0.00

−0.02

p-value

0.4722

0.0297

0.9741

0.4145

0.8036

0.6888

SP R22

0.0008

0.0072

0.0000

0.0010

0.0001

0.0010

LDL cholesterol

β

0.02

−0.03

0.02

−0.09

0.04

0.11

p-value

0.2997

0.4565

0.1728

0.2056

0.0285

0.0133

SP R22

0.0018

0.0009

0.0032

0.0026

0.0082

0.0099

Triglycerides

β

0.08

−0.16

0.09

−0.20

0.12

0.31

p-value

0.0117

0.0219

0.0018

0.0754

<0.0001

<0.0001

 

SP R22

0.0099

0.0069

0.0152

0.0042

0.0279

0.0211

  1. Model 1: The estimates are adjusted for age (as well as age quadratic), race, gender, BMI, alcohol consumption, smoking and exercising status, but not adjusted for the two remaining PCB groups and chlorinated pesticides.
  2. Model 2: The estimates are adjusted for age (as well as age quadratic), race, gender, BMI, alcohol consumption, smoking and exercising status, and adjusted for the remaining two PCB groups and chlorinated pesticides.
  3. SP R22 – Type II semi-partial R2.
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Environmental Health

ISSN: 1476-069X