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Table 3 Association between Cs 137 residential soil contamination and confounders in children examined in 2008-2010

From: Effects of long-term low-level radiation exposure after the Chernobyl catastrophe on immunoglobulins in children residing in contaminated areas: prospective and cross-sectional studies

Characteristic

Exposure to 137Cs in kBq/m2

P-value

Exposure to 137Cs in kBq/m2

P-value

<116, %

116-164, %

165-265, %

<116, %

116-164, %

165–349a, %

 

Children 8–11 years of age

 

Children 12–17 years of age

 

Antibiotic use during past 12 months

        

  Two or more times

5.6

13.3

2.4

0.082b

3.1

2.7

3.3

0.7426b

  One time

33.3

20.0

15.5

 

9.3

16.2

14.2

 

  None

61.1

66.7

82.1

 

87.6

81.1

82.7

 

Stove fueled with coal, coke or wood

50.0

0

23.8

0.002b

42.3

40.5

23.2

0.0005c

Gas from the mains used for cooking

88.9

100.0

95.2

0.378b

88.7

97.3

91.2

0.3119b

Cat exposure

        

  2d

44.4

20.0

31.0

0.205b

29.9

37.8

44.1

<.0001c

  1e

50.0

80.0

53.6

 

57.7

54.1

31.6

 

  0f

5.6

0

15.5

 

12.4

8.1

24.3

 

Dog exposure

        

  2d

5.6

0

1.2

0.002b

5.2

0

4.0

0.0032b

  1e

94.4

86.7

61.9

 

85.6

81.1

69.5

 

  0f

0

13.3

36.9

 

9.3

18.9

26.5

 

ETS

55.6

40.0

38.1

0.392c

49.5

40.5

46.0

0.6369c

Number of cigarettes smoked per day by a child

        

  0

    

87.7

92.8

95.7

0.0001b

  10 or less

    

11.6

2.9

2.3

 

  More than 10

    

0.7

4.4

1.8

 
  1. aQuintiles 165–265 and 266–349 kBq/m2 were combined since there was only one child in group 266–349 kBq/m2.
  2. bFisher’s exact test.
  3. cChi-square test.
  4. dCat or dog lives in the house or lives outside but comes inside.
  5. eCat or dog lives outside and not allowed inside.
  6. fNo cat or dog in the household.