Skip to main content

Table 3 Coefficients with standard error and p-value for the different mixed models used for explaining the time trend of urinary 8OHdG (log corrected).

From: Biomarkers of oxidative stress and its association with the urinary reducing capacity in bus maintenance workers

 

Smoker

Respiratory problems

Between-daya

Within day

Constant

OC

NOx

Cu

Model A1: No exposure

Coefficient

0.27 ± 0.20

0.63 ± 0.33

0.33 ± 0.07

0.25 ± 0.06

0.75 ± 0.2

-

-

-

p

0.175

0.055

< 0.001

< 0.001

< 0.001

-

-

-

Model A2: including stationary OC

Coefficient

0.34 ± 0.20

0.68 ± 0.33

0.29 ± 0.07

-0.47 ± 0.27

1.22 ± 0.3

0.03 ± 0.01

-

-

p

0.087

0.039

< 0.001

0.083

< 0.001

0.007

-

-

Model A3: including stationary NOx

Coefficient

0.46 ± 0.23

0.67 ± 0.34

0.39 ± 0.08

-0.22 ± 0.19

0.90 ± 0.3

-

7.7.10-4

± 2.7. 10-4

-

p

0.05

0.052

< 0.001

0.259

< 0.001

-

0.004

-

Model A4: including stationary Cu

Coefficient

0.36 ± 0.20

0.61 ± 0.31

0.36 ± 0.07

0.12 ± 0.09

0.60 ± 0.2

-

-

1.5.10-3 ± 0.7. 10-3

p

0.069

0.047

< 0.001

0.150

0.001

-

-

0.029

  1. a: restricted to non-smokers