TABLE A5-7 Electric-and Magnetic-Field Exposure and Childhood Cancers Other than Leukemia and Brain Cancer: Results

Study

Exposure Category

Number of Cases

Number of Controls

Crude ORa

95% CIb

Potential Confounders Addressedc

Wertheimer and Leeper 1979

Birth addresses:

 

 

 

 

Age of onset, sex,  socioeconomic status, urban residence, family pattern, traffic congestion

 

HCCd

17

9

2.4

0.9-6.1

 

 

LCCe

31

39

 

 

 

 

Death addresses:

 

 

 

 

 

 

HCC

18

17

1.1

0.5-2.4

 

 

LCC

45

46

 

 

 

Tomenius 1996

Total residences:

 

 

 

 

Age, sex, church district of birth

 

=0.3 µT

11

0

 

 

 

 

<0.3 µT

352

309

 

 

 

Savitz et al. 1988

Field measurements for low-power conditions:

 

 

 

 

Maternal age, father's education, family income, maternal smoking in pregnancy, traffic density, age, sex, geographic area of residence

 

>0.2 µT

1

16

0.3

0.4-2.1

 

 

<0.2 µT

39

191

 

 

 

 

Field measurements for high-power conditions:

 

 

 

 

 

 

>0.2 µT

3

29

0.5

0.1-1.7

 

 

<0.2 µT

37

175

 

 

 

 

Two-level wire codes:

 

 

 

 

 

 

High

28

52

1.5

0.9-2.6

 

 

Low

74

207

 

 

 

 

Wire codes:

 

 

 

 

 

 

Very high

4

8

1.6

0.5-5.8

 

 

Very low

27

88

 

 

 



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