Accession Number : ADA306195

Title :   Magnetic Fields and Breast Cancer Risk.

Descriptive Note : Annual rept. 30 Sep 94-29 Sep 95,

Corporate Author : UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES

Personal Author(s) : London, Stephanie

PDF Url : ADA306195

Report Date : OCT 1995

Pagination or Media Count : 10

Abstract : We will begin the second of four years of data collection on a nested case-control study of the possible association between magnetic field and breast cancer risk in African-American and Latino women in Los Angeles County. The research questions being addressed as follows: Primary: (1) Is residential exposure to magnetic fields, as assessed by wiring configuration coding in homes occupied over the past 10 years before diagnosis, associated with the risk of breast cancer. Wiring configuration coding is a method that uses data on the types and distances to nearby outdoor electrical wiring to impute magnetic field levels in homes. (2). Do higher exposures to alternating current (AC) magnetic fields, as assessed by 7 days of measurements, increase a woman's risk of breast cancer. Secondary: (1) Do particular combinations of the alternating current (AC) magnetic field and the direct current (DC) magnetic * field, increase the risk of breast cancer. The AC field results from our use of the 60 Hz electric power supplied by utilities; the DC (or static) field results from the earth's magnetic field but is altered by the environment within residences. This hypothesis was prompted by observations of biologic effects at particular combinations of the AC and DC fields in several experimental systems.

Descriptors :   *MAGNETIC FIELDS, *ALTERNATING CURRENT, *ELECTRIC POWER, *DIRECT CURRENT, *MAMMARY GLANDS, *BREAST CANCER, ENVIRONMENTS, RISK, BIOLOGY, DATA ACQUISITION, HYPOTHESES, EXPOSURE(PHYSIOLOGY), WOMEN, ELECTRIC WIRE, RESIDENTIAL SECTION, CANCER, OUTDOOR, HOUSING(DWELLINGS), AFRICAN AMERICANS.

Subject Categories : Medicine and Medical Research
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE