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Table 3 Urinary 8-OHdG (μg/g creatinine), Olive tail moment (OTL), Tail Length and Tail DNA% in the electroplating workers and control subjects.

From: Chronic occupational exposure to hexavalent chromium causes DNA damage in electroplating workers

variables

8-OHdG

OTL#

Tail Length

Tail DNA%

 

exposed workers

control subjects

Pvaluea

exposed workers

control subjects

Pvaluea

exposed workers

control subjects

Pvaluea

exposed workers

control subjects

Pvaluea

overall

13.65 (3.08-66.30)

8.31 (2.94-30.83)

<0.001

1.13 (0.14-6.77)

0.14 (0.01-0.39)

<0.001

11.77 (3.46-52.19)

3.26 (3.00-4.00)

<0.001

3.69 (0.65-16.20)

0.69 (0.04-2.74)

<0.001

gender

            

male

13.10 (3.08-66.30)

7.51 (2.94-22.34)

<0.001

1.25 (0.14-6.77)

0.14 (0.03-0.39)

<0.001

13.09 (3.46-52.19)

3.26 (3.00-4.00)

<0.001

4.05 (0.74-16.20)

0.69 (0.10-2.74)

<0.001

female

14.71 (3.49-33.90)

9.95 (3.55-30.83)

0.006

0.90 (0.16-3.52)

0.11 (0.01-0.23)

0.002

9.43 (3.72-26.97)

3.25 (3.00-4.00)

<0.001

3.05 (0.65-11.17)

0.67 (0.04-1.20)

<0.001

P valueb

0.41

0.06

 

0.07

0.68

 

0.011

0.964

 

0.065

0.974

 

age

            

<30

10.91 (4.51-27.28)

5.07 (3.55-7.11)

<0.001

0.79 (0.16-2.78)

0.07 (0.01-0.12)

0.003

8.80 (3.69-27.97)

3.20 (3.00-4.00)

<0.001

2.68 (0.65-8.02)

0.44 (0.09-1.11)

0.001

30-40

13.38 (3.49-59.15)

8.66 (2.94-22.34)

0.03

1.34 (0.14-6.77)

0.09 (0.05-0.27)

<0.001

13.09 (3.46-52.19)

3.26 (3.00-4.00)

<0.001

4.30 (0.74-16.20)

0.72 (0.13-1.74)

<0.001

>40

14.59 (3.08-66.30)

10.02 (3.30-30.83)

0.05

1.06 (0.24-4.26)

0.16 (0.08-0.39)

<0.001

11.59 (3.87-35.97)

3.27 (3.00-4.00)

<0.001

3.51 (1.19-12.74)

0.77 (0.04-2.74)

<0.001

P valueb

0.52

0.001

 

0.06

0.67

 

0.038

0.947

 

0.082

0.493

 

smoking status

            

No

9.65 (3.08-32.32)

8.20 (2.94-22.34)

0.04

1.07 (0.16-6.77)

0.12 (0.01-0.27)

<0.001

11.19 (3.72-52.19)

3.11 (3.00-4.00)

<0.001

3.46 (0.65-16.20)

0.57 (0.04-1.32)

<0.001

Yes

16.38 (3.49-66.30)

8.40 (3.30-30.83)

<0.001

1.21 (0.14-4.26)

0.18 (0.03-0.39)

<0.001

12.64 (3.46-35.97)

3.33 (3.00-4.00)

<0.001

4.02 (0.74-12.74)

0.75 (0.13-2.74)

<0.001

P valueb

<0.001

0.50

 

0.32

0.57

 

0.249

0.223

 

0.200

0.471

 

alcohol consumption

            

no

12.28 (4.09-59.15)

7.74 (2.94-30.83)

0.03

1.06 (0.16-6.77)

0.11 (0.01-0.23)

<0.001

10.95 (3.72-52.19)

3.19 (3.00-4.00)

<0.001

3.44 (0.65-16.20)

0.68 (0.04-2.74)

<0.001

yes

15.12 (3.08-66.30)

9.22 (3.30-22.34)

<0.001

1.21 (0.14-4.26)

0.14 (0.05-0.39)

<0.001

12.73 (3.46-35.97)

3.36 (3.00-4.00)

<0.001

3.99 (0.74-12.74)

0.71 (0.22-1.74)

<0.001

P valueb

0.05

0.57

 

0.16

0.46

 

0.064

0.314

 

0.159

0.430

 
  1. Data were presented as median (range);
  2. # Olive tail moment.
  3. P values were calculated with rank sum test. a between the electroplating workers and control subjects; b between potential confounding factors in the electroplating workers, control subjects, respectively.
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BMC Public Health

ISSN: 1471-2458

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