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Possible Health Effects of Exposure to Residential Electric and Magnetic Fields (1997)
Commission on Life Sciences (CLS)

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. "Appendix A: Tables." Possible Health Effects of Exposure to Residential Electric and Magnetic Fields. Washington, DC: The National Academies Press, 1997.

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Possible Health Effects of Exposure to Residential Electric and Magnetic Fields

TABLE A5-4 Residential Electric-and Magnetic-Field Exposure and Childhood Leukemia: Results

Study

Exposure Category

Number

of Cases

Number of Controls

Crude ORa

95% CIb

Adjusted ORc

Adjusted 95% CId

Potential Confounders Addressede

Wertheimer Leeper 1979

Birth addresses:

 

 

 

 

 

 

Age, sex, socioeconomic status (SES), urban residence, family pattern, traffic congestion, onset age

 

HCCf

52

29

2.3

1.3-3.9

 

 

 

 

LCCg

84

107

 

 

 

 

 

 

Death addresses:

 

 

 

 

 

 

 

 

HCC

63

29

3.0

1.8-5.0

 

 

 

 

LCC

92

126

 

 

 

 

 

Fulton et al. 1980

Very high

47.5

56.3

1.0

0.6-1.8

 

 

Onset age, SES, age

 

High

55.4

56.3

1.2

0.7-2.1

 

 

 

 

Low

49.5

56.3

1.1

0.6-1.9

 

 

 

 

Very low

45.5

56.3

 

 

 

 

 

Tomenius 1996

Total residences:

 

 

 

 

 

 

Age, sex, church district of birth

 

=0.3 µT

4

10

0.3

0.1-1.1

 

 

 

 

<0.3 µT

239

202

 

 

 

 

 

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

5

16

1.9

0.7-5.6

1.8-2.4

 

 

 

<0.2 µT

31

191

 

 

 

 

 

 

Field measurements for high-power conditions:

 

 

 

 

 

 

 

 

>0.2 µT

7

29

1.4

0.6-3.5

 

 

 

 

<0.2 µT

30

172

 

 

 

 

 

 

Two-level wire codes:

 

 

 

 

 

 

 

 

High

27

52

1.5

0.9-2.0

 

 

 

 

Low

70

207

 

 

 

 

 

 

Wire codes:

 

 

 

 

 

 

 

 

Very high

7

8

2.8

0.9-8.0

 

 

 

 

Very low

28

88

 

 

 

 

 

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