Residential and occupational exposure to 50-Hz magnetic fields and brain tumours in Norway: A population-based study

摘要: Our case-control study was conducted to investigate whether residential and occupational exposure magnetic fields increased the risk for brain tumours in adults. Data from an matrix also evaluated. The population this nested made up of subjects aged 16 years older who had resided a broad corridor around high-voltage power line 1980 or during one 1986–1996. cases were incident diagnosed 1980–96. Two controls matched each case by year birth, sex, municipality first entering cohort. time-weighted average generated lines calculated follow-up 1 January 1967 diagnosis. In addition, job titles branches industry classified as categories hours per week field above background level (0.1 μT). Exposures cumulated over occupationally active 1955 When are evaluated, 2 upper residential, time-weighted, showed elevated odds ratios (ORs) all (OR = 1.6; 95% confidence interval [95%CI] 0.9–2.7 OR 1.3; CI 0.7–2.3). Occupational no association any site. We found tumours, although not significant, clear exposure-response pattern found. findings groups inverse association. © 2005 Wiley-Liss, Inc.