TABLE A5-1 Residential Electric-and Magnetic-Field Exposure and Cancer: Study Structure

Study

Geographic Area of Study

Timea

Number of Casesb

Number of Controlsc

Exposure Assessment Strategyd

Studies of Childhood Cancer

Wertheimer and Leeper 1979

United States (Denver, Colorado)

1950-1973

344 cases, 491 residences

344 cases, 472 residences

Wire codes

Fulton et al. 1980

United States (Rhode Island)

1964-1978

119 cases, 209 residences

240 cases, 240 residences

Wire codes

Tomenius 1986

Sweden (Stockholm County)

1958-1973

716 cases, 1,172 residences

716 cases, 1,015 residences

Wire codes, spot field measurements

Savitz et al. 1988

United States (Denver, Colorado)

1976-1983

356

278

Wire codes, spot field measurements

Coleman et al. 1989

United Kingdom (SE London)

1965-1980

811

1,614 cancer controls, 254 population c ontrols

Wire codes

Myers et al. 1990

United Kingdom (Yorkshire health region)

1970-1979

419

656

Distance from overhead lines, calculated fields

London et al. 1991

United States (Los Angeles County)

1980-1987

331

257

Spot field measurements, 24-hr field measurements, wire codes, household-appliance use

Feychting and Ahlbom 1993

Sweden

1960-1985

142

558

Wire codes, spot field measurements



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